Fix a bug where /jobs?search[name]=Prune+Posts didn't find jobs named PrunePostsJob.
`"Prune Posts".tr(" ", "_").classify` was wrong because it returned `"PrunePost"`.
Fix a bug where /jobs?search[name]=Prune+Posts didn't find jobs named PrunePostsJob.
`"Prune Posts".tr(" ", "_").classify` was wrong because it returned `"PrunePost"`.