Program enhancements (3/3)

ndbootd(8): Sun Network Disk (ND) Protocol boot server
newsyslog(8): logs can be rotated at specific times, create log file on request
nfsstat(1): show percentages in output
rc(8): when "stop"ping a service poll until service dies, global watchdog timer for rc.shutdown(8)
savecore(8): use the formatted panic string if available
sort(1): switch from GNU to BSD