log output when installing and upgrading gerrit
log output when installing and upgrading gerrit

It would be good to keep the command output and exit code when installing or
upgrading gerrit in case it doesn't work.

Change-Id: Ia93001706b4ea509797419b74716c23db47aaed1

dhiana/puppet-gerrit,open-switch/infra_puppet-gerrit,dhiana/puppet-gerrit,open-switch/infra_puppet-gerrit,dhiana/puppet-gerrit,open-switch/infra_puppet-gerrit