fi
}
-if [ ! -z "$ZEVENT_VDEV_ENC_SYSFS_PATH" ] && [ ! -z "$ZEVENT_VDEV_STATE_STR" ] ; then
+if [ -n "$ZEVENT_VDEV_ENC_SYSFS_PATH" ] && [ -n "$ZEVENT_VDEV_STATE_STR" ] ; then
# Got a statechange for an individual VDEV
val=$(state_to_val "$ZEVENT_VDEV_STATE_STR")
vdev=$(basename "$ZEVENT_VDEV_PATH")