block="$(cat "$lock/pid" || printf 1)"
if ! { ps -eo pid |grep -qwF "$block"; }; then
printf 'Overriding stale lock: %s\n' "$lock" >&2
block="$(cat "$lock/pid" || printf 1)"
if ! { ps -eo pid |grep -qwF "$block"; }; then
printf 'Overriding stale lock: %s\n' "$lock" >&2