Merge branch 'patch-71' into 'master'

Fix broken hyperlink in reducing_the_repo_size_using_git.md

See merge request gitlab-org/gitlab-ce!29727

doc/user/project/repository/reducing_the_repo_size_using_git.md

@@ -101,9 +101,9 @@ up its own internal state, maximizing the space saved.
 
 This process will remove some copies of the rewritten commits from GitLab's
 cache and database, but there are still numerous gaps in coverage - at present,
-some of the copies may persist indefinitely. [Clearing the instance cache]
-(../../../administration/raketasks/maintenance.md#clear-redis-cache) may help to
-remove some of them, but it should not be depended on for security purposes!
+some of the copies may persist indefinitely. [Clearing the instance cache](../../../administration/raketasks/maintenance.md#clear-redis-cache) 
+may help to remove some of them, but it should not be depended on for security 
+purposes!
 
 ## Using `git filter-branch`