[Midnightbsd-cvs] src: auto_linklocal: sysctl sometimes reports warnings instead of

[laffer1 at midnightbsd.org]

Log Message:
-----------
sysctl sometimes reports warnings instead of errors.  Make the script catch these cases.

Modified Files:
--------------
    src/etc/rc.d:
        auto_linklocal (r1.1 -> r1.2)
        (http://cvsweb.midnightbsd.org/src/etc/rc.d/auto_linklocal?r1=1.1&r2=1.2)