kill: don't sleep is kill -0 fails.
kill: don't sleep is kill -0 fails.

kill -0 is used as a self-test during startup and does
not log anything. No reason to throttle ourselves.

On Travis CI, this sleep 1 causes test failures.

rfjakob/earlyoom,rfjakob/earlyoom,rfjakob/earlyoom,rfjakob/earlyoom