Merge branch 'rs-fix-gemfile-lock' into 'master'

Lock seed-fu at the correct version in Gemfile.lock

See merge request gitlab-org/gitlab-ce!15631

Gemfile.lock

@@ -1153,7 +1153,7 @@ DEPENDENCIES
   sanitize (~> 2.0)
   sass-rails (~> 5.0.6)
   scss_lint (~> 0.54.0)
-  seed-fu (~> 2.3.5)
+  seed-fu (~> 2.3.7)
   select2-rails (~> 3.5.9)
   selenium-webdriver (~> 3.5)
   sentry-raven (~> 2.5.3)