Merge branch 'ms/send-pack-honor-config'

"git send-pack --signed" (hence "git push --signed" over the http
transport) did not read user ident from the config mechanism to
determine whom to sign the push certificate as, which has been
corrected.

* ms/send-pack-honor-config:
  builtin/send-pack: populate the default configs

builtin/send-pack.c

@@ -121,7 +121,7 @@ static int send_pack_config(const char *k, const char *v, void *cb)
 			}
 		}
 	}
-	return 0;
+	return git_default_config(k, v, cb);
 }
 
 int cmd_send_pack(int argc, const char **argv, const char *prefix)