aa10084492
1 Let us associate a keyword with either a signed or an unsigned number. Associate the '-chan' keyword with an unsigned number. This fixes the defect that crashed 'ifconfig wi0 -chan', reported by Michael van Elst. 2 Do not try to interpret names as ISO addresses unless the ISO address family was specified. iso_addr(3) does not report errors, so it appears to interpret *everything* as an ISO address. This is a stopgap fix for the defect in 'ifconfig lo0 inet6' on a !INET6 kernel that deletes the first IPv4 address on lo0. (Reported by Scott Ellis.)