strip apostrophes from an error messages

mercurial/localrepo.py

@@ -1564,7 +1564,7 b' class localrepository(repo.repository):'
 
                     newbranches = list(set(localbrheads) - set(remotebrheads))
                     if newbranches: # new branch requires --force
-                        branchnames = ', '.join("'%s'" % b for b in newbranches)
+                        branchnames = ', '.join("%s" % b for b in newbranches)
                         self.ui.warn(_("abort: push creates "
                                        "new remote branches: %s!\n")
                                      % branchnames)

tests/test-push-warn.out

@@ -84,23 +84,23 b' 0'
 % push on existing branch and new branch
 pushing to ../f
 searching for changes
-abort: push creates new remote branches: 'c'!
+abort: push creates new remote branches: c!
 (use 'hg push -f' to force)
 1
 pushing to ../f
 searching for changes
-abort: push creates new remote branches: 'c'!
+abort: push creates new remote branches: c!
 (use 'hg push -f' to force)
 1
 % multiple new branches
 pushing to ../f
 searching for changes
-abort: push creates new remote branches: 'c', 'd'!
+abort: push creates new remote branches: c, d!
 (use 'hg push -f' to force)
 1
 pushing to ../f
 searching for changes
-abort: push creates new remote branches: 'd'!
+abort: push creates new remote branches: d!
 (use 'hg push -f' to force)
 1
 % fail on multiple head push