bin/94635: snapinfo(8)/libufs only works for disk-backed filesystems

[brucec at FreeBSD.org]

Synopsis: snapinfo(8)/libufs only works for disk-backed filesystems

Responsible-Changed-From-To: freebsd-bugs->freebsd-fs
Responsible-Changed-By: brucec
Responsible-Changed-When: Fri Sep 24 20:53:37 UTC 2010
Responsible-Changed-Why: 
Over to maintainer(s).
It looks like this issue has been fixed on 7.x and 8.x. Should the fix be merged
to 6.x or can this PR be closed?

http://www.freebsd.org/cgi/query-pr.cgi?pr=94635