pull-requests: drop required minimal 3 characters for title

rhodecode/model/forms.py

@@ -618,7 +618,7 b' def PullRequestForm(localizer, repo_id):'
         revisions = All(#v.NotReviewedRevisions(localizer, repo_id)(),
                         v.UniqueList(localizer)(not_empty=True))
         review_members = formencode.ForEach(ReviewerForm())
-        pullrequest_title = v.UnicodeString(strip=True, required=True, min=3, max=255)
+        pullrequest_title = v.UnicodeString(strip=True, required=True, min=1, max=255)
         pullrequest_desc = v.UnicodeString(strip=True, required=False)
         description_renderer = v.UnicodeString(strip=True, required=False)