diff --git a/Library/Homebrew/language/haskell.rb b/Library/Homebrew/language/haskell.rb
index 87725e9181..b5d0e1220b 100644
--- a/Library/Homebrew/language/haskell.rb
+++ b/Library/Homebrew/language/haskell.rb
@@ -72,7 +72,7 @@ module Language
       end
 
       def install_cabal_package(*args)
-        options = if args[-1].kind_of?(Hash) then args.pop else {} end
+        options = args[-1].is_a?(Hash) ? args.pop : {}
 
         cabal_sandbox do
           cabal_install_tools(*options[:using]) if options[:using]
diff --git a/Library/Homebrew/language/node.rb b/Library/Homebrew/language/node.rb
index 15a2ddc100..ab2206a5b4 100644
--- a/Library/Homebrew/language/node.rb
+++ b/Library/Homebrew/language/node.rb
@@ -21,7 +21,7 @@ module Language
       setup_npm_environment
       # tell npm to not install .brew_home by adding it to the .npmignore file
       # (or creating a new one if no .npmignore file already exists)
-      open(".npmignore", "a") { |f| f.write( "\n.brew_home\n") }
+      open(".npmignore", "a") { |f| f.write("\n.brew_home\n") }
       # npm install args for global style module format installed into libexec
       ["--verbose", "--global", "--prefix=#{libexec}", "."]
     end
diff --git a/Library/Homebrew/language/python.rb b/Library/Homebrew/language/python.rb
index eb06756387..95259c8411 100644
--- a/Library/Homebrew/language/python.rb
+++ b/Library/Homebrew/language/python.rb
@@ -187,12 +187,11 @@ module Language
           # Robustify symlinks to survive python3 patch upgrades
           @venv_root.find do |f|
             next unless f.symlink?
-            if (rp = f.realpath.to_s).start_with? HOMEBREW_CELLAR
-              python = rp.include?("python3") ? "python3" : "python"
-              new_target = rp.sub %r{#{HOMEBREW_CELLAR}/#{python}/[^/]+}, Formula[python].opt_prefix
-              f.unlink
-              f.make_symlink new_target
-            end
+            next unless (rp = f.realpath.to_s).start_with? HOMEBREW_CELLAR
+            python = rp.include?("python3") ? "python3" : "python"
+            new_target = rp.sub %r{#{HOMEBREW_CELLAR}/#{python}/[^/]+}, Formula[python].opt_prefix
+            f.unlink
+            f.make_symlink new_target
           end
         end
 
diff --git a/Library/Homebrew/language/python_virtualenv_constants.rb b/Library/Homebrew/language/python_virtualenv_constants.rb
index 23dbe1f723..c8b71aa85a 100644
--- a/Library/Homebrew/language/python_virtualenv_constants.rb
+++ b/Library/Homebrew/language/python_virtualenv_constants.rb
@@ -1,2 +1,2 @@
-PYTHON_VIRTUALENV_URL = "https://files.pythonhosted.org/packages/5c/79/5dae7494b9f5ed061cff9a8ab8d6e1f02db352f3facf907d9eb614fb80e9/virtualenv-15.0.2.tar.gz"
-PYTHON_VIRTUALENV_SHA256 = "fab40f32d9ad298fba04a260f3073505a16d52539a84843cf8c8369d4fd17167"
+PYTHON_VIRTUALENV_URL = "https://files.pythonhosted.org/packages/5c/79/5dae7494b9f5ed061cff9a8ab8d6e1f02db352f3facf907d9eb614fb80e9/virtualenv-15.0.2.tar.gz".freeze
+PYTHON_VIRTUALENV_SHA256 = "fab40f32d9ad298fba04a260f3073505a16d52539a84843cf8c8369d4fd17167".freeze