[sysadmin-bin] send_message isn't available, fix this call as well.

[Andrea Veri <av src gnome org>]

commit ab88f147d0467ac0bfa3ba43936af87163077487
Author: Andrea Veri <av gnome org>
Date:   Fri Jul 26 11:45:07 2013 +0200

    send_message isn't available, fix this call as well.

 git/post-receive-github |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/git/post-receive-github b/git/post-receive-github
index 1abb194..85d2d49 100755
--- a/git/post-receive-github
+++ b/git/post-receive-github
@@ -158,6 +158,6 @@ if __name__ == "__main__":
         msg['To']      = "gnome-sysadmin gnome org"
         msg['X-GNOME-SERVICE'] = "github-mirror"
         server = smtplib.SMTP("localhost")
-        server.send_message (msg)
+        server.sendmail (msg['From'], msg['To'], msg.as_string())
         server.quit ()
         raise e