Fix Style/GuardClause.

1 files changed, 2 insertions, 3 deletions

diff --git a/Library/Homebrew/extend/string.rb b/Library/Homebrew/extend/string.rb
index bd5994fe1..162666d2d 100644
--- a/Library/Homebrew/extend/string.rb
+++ b/Library/Homebrew/extend/string.rb
@@ -59,9 +59,8 @@ module StringInreplaceExtension
   # Looks for Makefile style variable defintions and replaces the
   # value with "new_value", or removes the definition entirely.
   def change_make_var!(flag, new_value)
-    unless gsub!(/^#{Regexp.escape(flag)}[ \t]*=[ \t]*(.*)$/, "#{flag}=#{new_value}", false)
-      errors << "expected to change #{flag.inspect} to #{new_value.inspect}"
-    end
+    return if gsub!(/^#{Regexp.escape(flag)}[ \t]*=[ \t]*(.*)$/, "#{flag}=#{new_value}", false)
+    errors << "expected to change #{flag.inspect} to #{new_value.inspect}"
   end
 
   # Removes variable assignments completely.