url: expand vars in all [auth] settings (issue2328)

mercurial/url.py

@@ -156,8 +156,7 b' class passwordmgr(urllib2.HTTPPasswordMg'
                 continue
             group, setting = key.split('.', 1)
             gdict = config.setdefault(group, dict())
-            if setting in ('cert', 'key'):
-                val = util.expandpath(val)
+            val = util.expandpath(val)
             gdict[setting] = val
 
         # Find the best match