Fix gerrit repo missing value in client.service state.

Change-Id: I5e4a8b5b7371a1dd0949a5111ec520f231f889ee
Closes-Bug: PROD-15507
diff --git a/gerrit/client/service.sls b/gerrit/client/service.sls
index 0c83c8a..5945141 100644
--- a/gerrit/client/service.sls
+++ b/gerrit/client/service.sls
@@ -25,8 +25,8 @@
   pip.installed:
     - names:
       - pygerrit
-      - "{{ client.repo.get('gerritlib', 'git+https://github.com/openstack-infra/gerritlib.git') }}"
-      - "{{ client.repo.get('jeepyb', 'git+https://github.com/openstack-infra/jeepyb.git') }}"
+      - "{{ client.get('repo', {}).get('gerritlib', 'git+https://github.com/openstack-infra/gerritlib.git') }}"
+      - "{{ client.get('repo', {}).get('jeepyb', 'git+https://github.com/openstack-infra/jeepyb.git') }}"
     - require:
       - pkg: gerrit_python_pip
       - pip: pbr_install