Fix the parsing of zpool list used for the health check.
Fix the parsing of zpool list used for the health check.

c3d2/sysadm,pcbsd/sysadm,pcbsd/sysadm,pcbsd/sysadm,c3d2/sysadm,c3d2/sysadm,c3d2/sysadm,pcbsd/sysadm,pcbsd/sysadm