Merge branch 'fj-fix-bug-commit-check' into 'master'

Fix bug in Gitlab::Checks::CommitCheck

See merge request gitlab-org/gitlab-ce!23045

lib/gitlab/checks/commit_check.rb

@@ -10,8 +10,8 @@ module Gitlab
       def initialize(project, user, newrev, oldrev)
         @project = project
         @user = user
-        @newrev = user
-        @oldrev = user
+        @newrev = newrev
+        @oldrev = oldrev
         @file_paths = []
       end