--- git/cmd.py.orig	2016-05-20 20:09:22.451359540 +0100
+++ git/cmd.py	2016-05-20 20:10:28.876627491 +0100
@@ -18,10 +18,9 @@
 from subprocess import (
     call,
     Popen,
-    PIPE
+    PIPE,
+    DEVNULL
 )
-
-
 from .util import (
     LazyMixin,
     stream_copy,
@@ -604,7 +603,7 @@
                          bufsize=-1,
                          stdin=istream,
                          stderr=PIPE,
-                         stdout=with_stdout and PIPE or None,
+                         stdout=with_stdout and PIPE or DEVNULL,
                          shell=self.USE_SHELL,
                          close_fds=(os.name == 'posix'),  # unsupported on windows
                          **subprocess_kwargs