Modify "gclient config url" to act a little bit more like "git clone url". If the

gclient.py

Index: gclient.py
===================================================================
--- gclient.py	(revision 87376)
+++ gclient.py	(working copy)
@@ -990,6 +990,8 @@
     base_url = args[0].rstrip('/')
     if not options.name:
       name = base_url.split('/')[-1]
+      if name.endswith('.git'):
+        name = name[:-4]
     else:
       # specify an alternate relpath for the given URL.
       name = options.name