# GERRIT_TOPIC is the rest of the refspec after GERRIT_BRANCH when the topic
# is set for the change.
if [ -z "${GERRIT_TOPIC:-}" ] ; then
# GERRIT_TOPIC is the rest of the refspec after GERRIT_BRANCH when the topic
# is set for the change.
if [ -z "${GERRIT_TOPIC:-}" ] ; then