add view pull desc

conf/locale/locale_en-US.ini

@@ -464,6 +464,7 @@ pulls.compare_changes = Compare Changes
 pulls.compare_changes_desc = Compare two branches and make a pull request for changes.
 pulls.no_results = No results found.
 pulls.create = Create Pull Request
+pulls.title_desc = wants to merge %[1]d commits from <code>%[2]s</code> into <code>%[3]s</code>
 pulls.tab_conversation = Conversation
 pulls.tab_commits = Commits
 pulls.tab_files = Files changed