[Midnightbsd-cvs] src: files: add age(4)

[laffer1 at midnightbsd.org]

Log Message:
-----------
add age(4)

Modified Files:
--------------
    src/sys/conf:
        files (r1.20 -> r1.21)
        (http://cvsweb.midnightbsd.org/src/sys/conf/files?r1=1.20&r2=1.21)