freebsd7 and mdconfig -l -u oddity

[Christoph Hoffmann]

as request the quick check:

(o) 8.0-CURRENT
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# mdconfig -l -u 1 ; echo $?
255


(o) 7.0-BETA3
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# mdconfig -l -u 1 ; echo $?
0

(o) 6.2-STABLE
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# mdconfig -l -u 1 ; echo $?
mdconfig: ioctl(/dev/mdctl): No such file or directory
1

Regards,

Christoph