K 10
svn:author
V 3
pfg
K 8
svn:date
V 27
2013-07-01T14:49:23.664201Z
K 7
svn:log
V 241
Change i_gen in UFS to an unsigned type.

Further simplify the i_gen calculation for older disks.
Having a zero here is not really a problem and this is more
similar to what is done in newfs_random().

Reported by:	Xin Li
MFC after:	4 weeks

END