Comment 7 for bug 1097592

I found a similar failure in http://logs.openstack.org/89/67389/2/gate/gate-grenade-dsvm/e7a14e6/console.html
Not so many times though.

 2014-01-26 06:25:02.034 | 2014-01-26 06:25:01 dpkg: error: dpkg status database is locked by another process
 2014-01-26 06:25:02.034 | 2014-01-26 06:25:02 E: Sub-process /usr/bin/dpkg returned an error code (2)

I've posted a patch for e-r query queries/1097592.yaml.
 https://review.openstack.org/69259