Merge pull request #2769 from MikeMcQuaid/rubocop-no-perl-backrefs1.2.3

rubocop: don’t allow Perl regex backrefs.

1 files changed, 2 insertions, 2 deletions

diff --git a/Library/Homebrew/formulary.rb b/Library/Homebrew/formulary.rb
index ea2ad5d02..a0ccb9ba0 100644
--- a/Library/Homebrew/formulary.rb
+++ b/Library/Homebrew/formulary.rb
@@ -59,7 +59,7 @@ module Formulary
 
   def self.class_s(name)
     class_name = name.capitalize
-    class_name.gsub!(/[-_.\s]([a-zA-Z0-9])/) { $1.upcase }
+    class_name.gsub!(/[-_.\s]([a-zA-Z0-9])/) { Regexp.last_match(1).upcase }
     class_name.tr!("+", "x")
     class_name.sub!(/(.)@(\d)/, "\\1AT\\2")
     class_name
@@ -168,7 +168,7 @@ module Formulary
       super
     rescue MethodDeprecatedError => e
       if url =~ %r{github.com/([\w-]+)/homebrew-([\w-]+)/}
-        e.issues_url = "https://github.com/#{$1}/homebrew-#{$2}/issues/new"
+        e.issues_url = "https://github.com/#{Regexp.last_match(1)}/homebrew-#{Regexp.last_match(2)}/issues/new"
       end
       raise
     end