[Midnightbsd-cvs] src: Makefile: update igb(4) build environment

[laffer1 at midnightbsd.org]

Log Message:
-----------
update igb(4) build environment

Modified Files:
--------------
    src/sys/modules/igb:
        Makefile (r1.1 -> r1.2)
        (http://cvsweb.midnightbsd.org/src/sys/modules/igb/Makefile?r1=1.1&r2=1.2)