diff -r 14d647d25c70 -r d8e0c591781c mercurial/changegroup.py
--- a/mercurial/changegroup.py	Fri Feb 27 21:42:58 2015 +0100
+++ b/mercurial/changegroup.py	Sun Jan 18 02:38:57 2015 +0100
@@ -111,7 +111,8 @@
             chunkiter = bundle.getchunks()
         else:
             if cg.version != '01':
-                raise util.Abort(_('Bundle1 only supports v1 changegroups\n'))
+                raise util.Abort(_('old bundle types only supports v1 '
+                                   'changegroups'))
             header, compressor = bundletypes[bundletype]
             fh.write(header)
             z = compressor()