Fix misleading word on delete repositories' archives (#14737)

Author: lunny

options/locale/locale_en-US.ini

@@ -2059,7 +2059,7 @@ dashboard.cron.error=Error in Cron: %s: %[3]s
 dashboard.cron.finished=Cron: %[1]s has finished
 dashboard.delete_inactive_accounts = Delete all unactivated accounts
 dashboard.delete_inactive_accounts.started = Delete all unactivated accounts task started.
-dashboard.delete_repo_archives = Delete all repository archives
+dashboard.delete_repo_archives = "Delete all repositories' archives (ZIP, TAR.GZ, etc..)"
 dashboard.delete_repo_archives.started = Delete all repository archives task started.
 dashboard.delete_missing_repos = Delete all repositories missing their Git files
 dashboard.delete_missing_repos.started = Delete all repositories missing their Git files task started.