Comment # 30 on bug 909111 from Mark Hounschell

This bug still exists even though the original BUG report was back in 2015. The
last rescan-scsi-bus.sh that actually worked was from the 12.3 dist. I have had
to keep the version for 12.3 on my system every since because I use it
constantly. Please fix this BUG. I would be happy to attach the 12.3 version of
this script but find no way to do it but inline here.