brew style --fix

Library/Homebrew/install.rb

@@ -360,7 +360,7 @@ module Homebrew
         puts formula_names.join(" ")
       end
     end
-end
+  end
 end
 
 require "extend/os/install"

Library/Homebrew/os/linux.rb

@@ -50,8 +50,6 @@ module OS
 
   # rubocop:disable Style/Documentation
   module Mac
-    module_function
-
     ::MacOS = OS::Mac
 
     raise "Loaded OS::Linux on generic OS!" if ENV["HOMEBREW_TEST_GENERIC_OS"]
@@ -85,8 +83,6 @@ module OS
     end
 
     module Xcode
-      module_function
-
       def self.version
         ::Version::NULL
       end
@@ -97,8 +93,6 @@ module OS
     end
 
     module CLT
-      module_function
-
       def self.version
         ::Version::NULL
       end

Library/Homebrew/os/mac/xcode.rb

@@ -261,8 +261,6 @@ module OS
     module CLT
       extend T::Sig
 
-      module_function
-
       # The original Mavericks CLT package ID
       EXECUTABLE_PKG_ID = "com.apple.pkg.CLTools_Executables"
       MAVERICKS_NEW_PKG_ID = "com.apple.pkg.CLTools_Base" # obsolete

Library/Homebrew/utils/github/api.rb

@@ -182,7 +182,9 @@ module GitHub
       EOS
     end
 
-    def self.open_rest(url, data: nil, data_binary_path: nil, request_method: nil, scopes: [].freeze, parse_json: true)
+    def self.open_rest(
+      url, data: nil, data_binary_path: nil, request_method: nil, scopes: [].freeze, parse_json: true
+    )
       # This is a no-op if the user is opting out of using the GitHub API.
       return block_given? ? yield({}) : {} if Homebrew::EnvConfig.no_github_api?