Push everything - not just master.

Change-Id: If10bd25e71f321a7b3ea1cbbe42ab5ec764d62b0
Reviewed-on: https://review.openstack.org/16215
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Approved: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins
diff --git a/manage_projects.py b/manage_projects.py
index 6d9bf8e..0bb0fc7 100755
--- a/manage_projects.py
+++ b/manage_projects.py
@@ -302,7 +302,7 @@
                     run_command("chown -R gerrit2:gerrit2 %s" % project_dir)
 
                 git_command(repo_path,
-                            "push %s HEAD:refs/heads/master" % remote_url,
+                            "push --all %s" % remote_url,
                             env=ssh_env)
                 git_command(repo_path,
                             "push --tags %s" % remote_url, env=ssh_env)