url: add trailing slashes to URLs with hostnames that don't have one This works around a potential issue in Python 2.4 where cloning a repo with a URL like http://foo:8080 would cause urllib2 to query on http://foo:8080?cmd=capabilities instead of http://foo:8080/?cmd=capabilities. In the past, this issue has been masked by the fact that url.getauthinfo() added a trailing slash when it was missing.

--- a/tests/test-http-branchmap.t	Wed Mar 30 19:50:56 2011 -0700
+++ b/tests/test-http-branchmap.t	Wed Mar 30 20:00:23 2011 -0700
@@ -30,7 +30,7 @@
   $ echo bar >> b/foo
   $ hg -R b ci -m bar
   $ hg --encoding utf-8 -R b push
-  pushing to http://localhost:$HGPORT1
+  pushing to http://localhost:$HGPORT1/
   searching for changes
   remote: adding changesets
   remote: adding manifests