Enable Rubocop Performance/ReverseEachsh-rubocop-reverse-each

`Array.reverse_each` is faster than `Array.reverse.each` because:

* reverse.each creates a new array then loops each element
* reverse_each loops in reverse order (no intermediate array created)

1 files changed, 1 insertions, 1 deletions

diff --git a/app/models/commit.rb b/app/models/commit.rb
index be37fa2e76f..0889ce7e287 100644
--- a/app/models/commit.rb
+++ b/app/models/commit.rb
@@ -346,7 +346,7 @@ class Commit
       if commits_in_merge_request.present?
         message_body << ""
 
-        commits_in_merge_request.reverse.each do |commit_in_merge|
+        commits_in_merge_request.reverse_each do |commit_in_merge|
           message_body << "#{commit_in_merge.short_id} #{commit_in_merge.title}"
         end
       end