Russian translation for text_no_subject (#5820).

Patch by Roland Discein.


git-svn-id: http://svn.redmine.org/redmine/trunk@18390 e93f8b46-1217-0410-a6f0-8f06a7374b81

config/locales/ru.yml

@@ -1383,4 +1383,4 @@ ru:
   label_issue_history_notes: Notes
   label_last_tab_visited: Last visited tab
   field_unique_id: Unique ID
-  text_no_subject: no subject
+  text_no_subject: Нет темы