tree bea8f7d0e7e3a442472293cd991949f97ea2c59a
parent 76bfd29caf3b62ce5a07fd108c97db60bf812134
author Andrea Campanella <andrea@opennetworking.org> 1620807133 +0200
committer Andrea Campanella <andrea@opennetworking.org> 1620807706 +0200

Avoid failure in case no port-forwards are present.
Without || true the result will be
ps aux
grep port-forw
grep -v grep
awk '{print $2}'
xargs --no-run-if-empty kill -9
kill: (15338): No such process

and the pipeline will forcefully stop.

Change-Id: I0b377e406567dc2dc154eed21216aa5b3f1ca8b1