Fix ssh://user@hostname/ style URLs parsing

I only tested this with ssh://hostname/ style URLs, so I failed
to test ssh://user@hostname/ format, which failed if the hostname
portion was longer than 1 character.

Signed-off-by: Shawn O. Pearce <sop@google.com>

git_config.py

@@ -385,7 +385,7 @@ def close_ssh():
       pass
 
 URI_SCP = re.compile(r'^([^@:]*@?[^:/]{1,}):')
-URI_ALL = re.compile(r'^([a-z][a-z+]*)://([^@/]*@?[^/])/')
+URI_ALL = re.compile(r'^([a-z][a-z+]*)://([^@/]*@?[^/]*)/')
 
 def _preconnect(url):
   m = URI_ALL.match(url)