Capitalize mentioned issue timeline notes ## What does this MR do? Renames `mentioned in` to `Mentioned in` for issue timeline notes ## Are there points in the code the reviewer needs to double check? Shouldn't be any 😄 ## Why was this MR needed? Resolves existing UI inconsistency as all the other issue timeline notes have their first letter capitalized. ## What are the relevant issue numbers? Closes #21416 ## Screenshots (if relevant) Before:  After:  ## Does this MR meet the acceptance criteria? - [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added - Tests - [x] All builds are passing - [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides) - [x] Branch has no merge conflicts with `master` (if you do - rebase it please) - [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits) See merge request !6028 |
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| auth | ||
| boards | ||
| ci | ||
| commits | ||
| files | ||
| groups | ||
| issues | ||
| members | ||
| merge_requests | ||
| milestones | ||
| notes | ||
| oauth2 | ||
| projects | ||
| protected_branches | ||
| search | ||
| slash_commands | ||
| wiki_pages | ||
| akismet_service.rb | ||
| audit_event_service.rb | ||
| base_service.rb | ||
| compare_service.rb | ||
| create_branch_service.rb | ||
| create_deployment_service.rb | ||
| create_release_service.rb | ||
| create_snippet_service.rb | ||
| create_tag_service.rb | ||
| delete_branch_service.rb | ||
| delete_tag_service.rb | ||
| delete_user_service.rb | ||
| destroy_group_service.rb | ||
| event_create_service.rb | ||
| git_hooks_service.rb | ||
| git_push_service.rb | ||
| git_tag_push_service.rb | ||
| gravatar_service.rb | ||
| ham_service.rb | ||
| import_export_clean_up_service.rb | ||
| issuable_base_service.rb | ||
| notification_service.rb | ||
| repair_ldap_blocked_user_service.rb | ||
| repository_archive_clean_up_service.rb | ||
| spam_service.rb | ||
| system_hooks_service.rb | ||
| system_note_service.rb | ||
| test_hook_service.rb | ||
| todo_service.rb | ||
| update_release_service.rb | ||
| update_snippet_service.rb | ||
| user_agent_detail_service.rb | ||