diff --git a/Library/Homebrew/brew.sh b/Library/Homebrew/brew.sh
index b7cd76995b..3679d4af40 100644
--- a/Library/Homebrew/brew.sh
+++ b/Library/Homebrew/brew.sh
@@ -100,12 +100,12 @@ then
   # Refuse to run on pre-Mavericks
   if [[ "$HOMEBREW_MACOS_VERSION_NUMERIC" -lt "100900" ]]
   then
-    printf "ERROR: Your version of macOS (%s) is too old to run Homebrew!" "$HOMEBREW_MACOS_VERSION" >&2
+    printf "ERROR: Your version of macOS (%s) is too old to run Homebrew!\\n" "$HOMEBREW_MACOS_VERSION" >&2
     if [[ "$HOMEBREW_MACOS_VERSION_NUMERIC" -lt "100700" ]]
     then
-      printf "         For 10.4 - 10.6 support see: https://github.com/mistydemeo/tigerbrew\n" >&2
+      printf "         For 10.4 - 10.6 support see: https://github.com/mistydemeo/tigerbrew\\n" >&2
     fi
-    printf "\n" >&2
+    printf "\\n" >&2
   fi
 
   # The system Curl is too old for some modern HTTPS certificates on
diff --git a/Library/Homebrew/cask/artifact/relocated.rb b/Library/Homebrew/cask/artifact/relocated.rb
index 85ae8fa9d9..59fa34a0bc 100644
--- a/Library/Homebrew/cask/artifact/relocated.rb
+++ b/Library/Homebrew/cask/artifact/relocated.rb
@@ -52,7 +52,7 @@ module Cask
 
       ALT_NAME_ATTRIBUTE = "com.apple.metadata:kMDItemAlternateNames".freeze
 
-      # Try to make the asset searchable under the target name.  Spotlight
+      # Try to make the asset searchable under the target name. Spotlight
       # respects this attribute for many filetypes, but ignores it for App
       # bundles. Alfred 2.2 respects it even for App bundles.
       def add_altname_metadata(file, altname, command: nil)
diff --git a/Library/Homebrew/cask/exceptions.rb b/Library/Homebrew/cask/exceptions.rb
index 9735496258..129f5165c5 100644
--- a/Library/Homebrew/cask/exceptions.rb
+++ b/Library/Homebrew/cask/exceptions.rb
@@ -133,8 +133,8 @@ module Cask
         Checksum for Cask '#{token}' does not match.
 
         Expected: #{Formatter.success(expected.to_s)}
-        Actual:   #{Formatter.error(actual.to_s)}
-        File:     #{path}
+          Actual: #{Formatter.error(actual.to_s)}
+            File: #{path}
 
         To retry an incomplete download, remove the file above. If the issue persists, visit:
 
diff --git a/Library/Homebrew/cmd/gist-logs.rb b/Library/Homebrew/cmd/gist-logs.rb
index dbe0ad1810..ae59fc6ea9 100644
--- a/Library/Homebrew/cmd/gist-logs.rb
+++ b/Library/Homebrew/cmd/gist-logs.rb
@@ -49,8 +49,8 @@ module Homebrew
     unless f.core_formula?
       tap = <<~EOS
         Formula: #{f.name}
-        Tap: #{f.tap}
-        Path: #{f.path}
+            Tap: #{f.tap}
+           Path: #{f.path}
       EOS
       files["00.tap.out"] = { content: tap }
     end
diff --git a/Library/Homebrew/cmd/vendor-install.sh b/Library/Homebrew/cmd/vendor-install.sh
index 722db3aefc..98b246cc16 100644
--- a/Library/Homebrew/cmd/vendor-install.sh
+++ b/Library/Homebrew/cmd/vendor-install.sh
@@ -152,8 +152,8 @@ EOSCRIPT
     odie <<EOS
 Checksum mismatch.
 Expected: $VENDOR_SHA
-Actual: $sha
-Archive: $CACHED_LOCATION
+  Actual: $sha
+ Archive: $CACHED_LOCATION
 To retry an incomplete download, remove the file above.
 EOS
   fi
diff --git a/Library/Homebrew/dev-cmd/update-test.rb b/Library/Homebrew/dev-cmd/update-test.rb
index 8902972113..3c1416f059 100644
--- a/Library/Homebrew/dev-cmd/update-test.rb
+++ b/Library/Homebrew/dev-cmd/update-test.rb
@@ -70,7 +70,7 @@ module Homebrew
     end
 
     puts "Start commit: #{start_commit}"
-    puts "End   commit: #{end_commit}"
+    puts "  End commit: #{end_commit}"
 
     mkdir "update-test"
     chdir "update-test" do
diff --git a/Library/Homebrew/exceptions.rb b/Library/Homebrew/exceptions.rb
index eb546b110a..4c4158295e 100644
--- a/Library/Homebrew/exceptions.rb
+++ b/Library/Homebrew/exceptions.rb
@@ -403,12 +403,12 @@ class BuildError < RuntimeError
       elsif issues_url = formula.tap.issues_url
         puts <<~EOS
           If reporting this issue please do so at (not Homebrew/brew or Homebrew/core):
-          #{Formatter.url(issues_url)}
+            #{Formatter.url(issues_url)}
         EOS
       else
         puts <<~EOS
           If reporting this issue please do so to (not Homebrew/brew or Homebrew/core):
-          #{formula.tap}
+            #{formula.tap}
         EOS
       end
     else
@@ -568,8 +568,8 @@ class ChecksumMismatchError < RuntimeError
     super <<~EOS
       #{@hash_type} mismatch
       Expected: #{expected}
-      Actual: #{actual}
-      Archive: #{fn}
+        Actual: #{actual}
+       Archive: #{fn}
       To retry an incomplete download, remove the file above.
     EOS
   end
diff --git a/Library/Homebrew/extend/ENV/std.rb b/Library/Homebrew/extend/ENV/std.rb
index 2f25389771..eb079f19be 100644
--- a/Library/Homebrew/extend/ENV/std.rb
+++ b/Library/Homebrew/extend/ENV/std.rb
@@ -135,7 +135,7 @@ module Stdenv
     return if compiler_any_clang?
     return unless Hardware.is_32_bit?
 
-    # Can't mix "-march" for a 32-bit CPU  with "-arch x86_64"
+    # Can't mix "-march" for a 32-bit CPU with "-arch x86_64"
     replace_in_cflags(/-march=\S*/, "-Xarch_#{Hardware::CPU.arch_32_bit} \\0")
   end
 
diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index c27322e232..6950b041f4 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -65,7 +65,7 @@ module DiskUsageExtension
 end
 
 # Homebrew extends Ruby's `Pathname` to make our code more readable.
-# @see https://ruby-doc.org/stdlib-1.8.7/libdoc/pathname/rdoc/Pathname.html  Ruby's Pathname API
+# @see https://ruby-doc.org/stdlib-1.8.7/libdoc/pathname/rdoc/Pathname.html Ruby's Pathname API
 class Pathname
   include DiskUsageExtension
 
diff --git a/Library/Homebrew/formula_cellar_checks.rb b/Library/Homebrew/formula_cellar_checks.rb
index 5665cfe61e..c8080ec94c 100644
--- a/Library/Homebrew/formula_cellar_checks.rb
+++ b/Library/Homebrew/formula_cellar_checks.rb
@@ -140,7 +140,7 @@ module FormulaCellarChecks
     <<~EOS
       Emacs Lisp files were installed into the wrong site-lisp subdirectory.
       They should be installed into:
-      #{share}/emacs/site-lisp/#{name}
+        #{share}/emacs/site-lisp/#{name}
     EOS
   end
 
@@ -156,7 +156,7 @@ module FormulaCellarChecks
       Emacs Lisp files were linked directly to #{HOMEBREW_PREFIX}/share/emacs/site-lisp
       This may cause conflicts with other packages.
       They should instead be installed into:
-      #{share}/emacs/site-lisp/#{name}
+        #{share}/emacs/site-lisp/#{name}
 
       The offending files are:
         #{elisps * "\n        "}
diff --git a/Library/Homebrew/install.rb b/Library/Homebrew/install.rb
index 1f14f2c4cf..256993e3df 100644
--- a/Library/Homebrew/install.rb
+++ b/Library/Homebrew/install.rb
@@ -12,7 +12,8 @@ module Homebrew
       when :ppc
         abort <<~EOS
           Sorry, Homebrew does not support your computer's CPU architecture.
-          For PPC support, see: https://github.com/mistydemeo/tigerbrew
+          For PPC support, see:
+            #{Formatter.url("https://github.com/mistydemeo/tigerbrew")}
         EOS
       end
     end
diff --git a/Library/Homebrew/migrator.rb b/Library/Homebrew/migrator.rb
index 528b74c210..60bb0ce711 100644
--- a/Library/Homebrew/migrator.rb
+++ b/Library/Homebrew/migrator.rb
@@ -34,7 +34,7 @@ class Migrator
 
       super <<~EOS
         #{formula.name} from #{formula.tap} is given, but old name #{formula.oldname} was installed from #{tap || "path or url"}.
-         #{msg}To force migrate use `brew migrate --force #{formula.oldname}`.
+        #{msg}To force migration use `brew migrate --force #{formula.oldname}`.
       EOS
     end
   end
diff --git a/Library/Homebrew/requirement.rb b/Library/Homebrew/requirement.rb
index 6b1e2fe8b1..9474aabfda 100644
--- a/Library/Homebrew/requirement.rb
+++ b/Library/Homebrew/requirement.rb
@@ -36,14 +36,14 @@ class Requirement
     if cask
       s += <<~EOS
         You can install with Homebrew Cask:
-         brew cask install #{cask}
+          brew cask install #{cask}
       EOS
     end
 
     if download
       s += <<~EOS
         You can download from:
-         #{download}
+          #{download}
       EOS
     end
     s
diff --git a/Library/Homebrew/rubocops/extend/formula.rb b/Library/Homebrew/rubocops/extend/formula.rb
index f712aa1de7..4db4eff872 100644
--- a/Library/Homebrew/rubocops/extend/formula.rb
+++ b/Library/Homebrew/rubocops/extend/formula.rb
@@ -117,8 +117,8 @@ module RuboCop
 
       # Returns array of function call nodes matching func_name in every descendant of node.
       #
-      # - matches function call:  `foo(*args, **kwargs)`
-      # - does not match method calls:  `foo.bar(*args, **kwargs)`
+      # - matches function call: `foo(*args, **kwargs)`
+      # - does not match method calls: `foo.bar(*args, **kwargs)`
       # - returns every function calls if no func_name is passed
       def find_every_func_call_by_name(node, func_name = nil)
         return if node.nil?
diff --git a/Library/Homebrew/rubocops/patches.rb b/Library/Homebrew/rubocops/patches.rb
index 8a5f98c484..7e912fd306 100644
--- a/Library/Homebrew/rubocops/patches.rb
+++ b/Library/Homebrew/rubocops/patches.rb
@@ -44,7 +44,7 @@ module RuboCop
             if patch_url !~ /[a-fA-F0-9]{40}/
               problem <<~EOS.chomp
                 GitHub/Gist patches should specify a revision:
-                #{patch_url}
+                  #{patch_url}
               EOS
             end
           end
@@ -63,14 +63,14 @@ module RuboCop
           if regex_match_group(patch, %r{macports/trunk})
             problem <<~EOS.chomp
               MacPorts patches should specify a revision instead of trunk:
-              #{patch_url}
+                #{patch_url}
             EOS
           end
 
           if regex_match_group(patch, %r{^http://trac\.macports\.org})
             problem <<~EOS.chomp
               Patches from MacPorts Trac should be https://, not http:
-              #{patch_url}
+                #{patch_url}
             EOS
           end
 
@@ -78,7 +78,7 @@ module RuboCop
 
           problem <<~EOS.chomp
             Patches from Debian should be https://, not http:
-            #{patch_url}
+              #{patch_url}
           EOS
         end
       end
diff --git a/Library/Homebrew/test/options_spec.rb b/Library/Homebrew/test/options_spec.rb
index 73d90305b0..770485cc83 100644
--- a/Library/Homebrew/test/options_spec.rb
+++ b/Library/Homebrew/test/options_spec.rb
@@ -63,7 +63,7 @@ describe Options do
     expect(subject.count).to eq(1)
   end
 
-  it "preserves  existing member when adding a duplicate" do
+  it "preserves existing member when adding a duplicate" do
     a = Option.new("foo", "bar")
     b = Option.new("foo", "qux")
     subject << a << b
diff --git a/Library/Homebrew/test/rubocops/patches_spec.rb b/Library/Homebrew/test/rubocops/patches_spec.rb
index 61d2d3e47e..81f382ecc7 100644
--- a/Library/Homebrew/test/rubocops/patches_spec.rb
+++ b/Library/Homebrew/test/rubocops/patches_spec.rb
@@ -50,7 +50,7 @@ describe RuboCop::Cop::FormulaAudit::Patches do
           [{ message:
                        <<~EOS.chomp,
                          GitHub/Gist patches should specify a revision:
-                         #{patch_url}
+                           #{patch_url}
                        EOS
              severity: :convention,
              line:     5,
@@ -60,7 +60,7 @@ describe RuboCop::Cop::FormulaAudit::Patches do
           [{ message:
                        <<~EOS.chomp,
                          MacPorts patches should specify a revision instead of trunk:
-                         #{patch_url}
+                           #{patch_url}
                        EOS
              severity: :convention,
              line:     5,
@@ -70,7 +70,7 @@ describe RuboCop::Cop::FormulaAudit::Patches do
           [{ message:
                        <<~EOS.chomp,
                          Patches from MacPorts Trac should be https://, not http:
-                         #{patch_url}
+                           #{patch_url}
                        EOS
              severity: :convention,
              line:     5,
@@ -80,7 +80,7 @@ describe RuboCop::Cop::FormulaAudit::Patches do
           [{ message:
                        <<~EOS.chomp,
                          Patches from Debian should be https://, not http:
-                         #{patch_url}
+                           #{patch_url}
                        EOS
              severity: :convention,
              line:     5,
@@ -141,7 +141,7 @@ describe RuboCop::Cop::FormulaAudit::Patches do
                            { message:
                                        <<~EOS.chomp,
                                          Patches from MacPorts Trac should be https://, not http:
-                                         http://trac.macports.org/export/68507/trunk/dports/net/trafshow/files/
+                                           http://trac.macports.org/export/68507/trunk/dports/net/trafshow/files/
                                        EOS
                              severity: :convention,
                              line:     8,
@@ -185,7 +185,7 @@ describe RuboCop::Cop::FormulaAudit::Patches do
           [{ message:
                        <<~EOS.chomp,
                          GitHub/Gist patches should specify a revision:
-                         #{patch_url}
+                           #{patch_url}
                        EOS
              severity: :convention,
              line:     5,
@@ -195,7 +195,7 @@ describe RuboCop::Cop::FormulaAudit::Patches do
           [{ message:
                        <<~EOS.chomp,
                          MacPorts patches should specify a revision instead of trunk:
-                         #{patch_url}
+                           #{patch_url}
                        EOS
              severity: :convention,
              line:     5,
@@ -205,7 +205,7 @@ describe RuboCop::Cop::FormulaAudit::Patches do
           [{ message:
                        <<~EOS.chomp,
                          Patches from MacPorts Trac should be https://, not http:
-                         #{patch_url}
+                           #{patch_url}
                        EOS
              severity: :convention,
              line:     5,
@@ -215,7 +215,7 @@ describe RuboCop::Cop::FormulaAudit::Patches do
           [{ message:
                        <<~EOS.chomp,
                          Patches from Debian should be https://, not http:
-                         #{patch_url}
+                           #{patch_url}
                        EOS
              severity: :convention,
              line:     5,
diff --git a/Library/Homebrew/utils/gems.rb b/Library/Homebrew/utils/gems.rb
index 12925a9ebb..5b16b0bee2 100644
--- a/Library/Homebrew/utils/gems.rb
+++ b/Library/Homebrew/utils/gems.rb
@@ -71,7 +71,7 @@ module Homebrew
 
     odie_if_defined <<~EOS
       the '#{name}' gem is installed but couldn't find '#{executable}' in the PATH:
-      #{ENV["PATH"]}
+        #{ENV["PATH"]}
     EOS
   end
 
diff --git a/Library/Homebrew/utils/github.rb b/Library/Homebrew/utils/github.rb
index 554c4910be..d12aaa0693 100644
--- a/Library/Homebrew/utils/github.rb
+++ b/Library/Homebrew/utils/github.rb
@@ -49,7 +49,7 @@ module GitHub
       if ENV["HOMEBREW_GITHUB_API_TOKEN"]
         message << <<~EOS
           HOMEBREW_GITHUB_API_TOKEN may be invalid or expired; check:
-          #{Formatter.url("https://github.com/settings/tokens")}
+            #{Formatter.url("https://github.com/settings/tokens")}
         EOS
       else
         message << <<~EOS
@@ -143,7 +143,7 @@ module GitHub
           onoe <<~EOS
             Your HOMEBREW_GITHUB_API_TOKEN does not have sufficient scope!
             Scopes it needs: #{needed_human_scopes}
-            Scopes it has: #{credentials_scopes}
+              Scopes it has: #{credentials_scopes}
             Create a new personal access token:
               #{ALL_SCOPES_URL}
             #{Utils::Shell.set_variable_in_profile("HOMEBREW_GITHUB_API_TOKEN", "your_token_here")}