K 10
svn:author
V 3
avg
K 8
svn:date
V 27
2015-06-17T12:05:04.909123Z
K 7
svn:log
V 229
illumos compat: use flsl/flsll for highbit/highbit64

This is a micro optimization.
The upstream code uses the binary search.

Differential Revision:	https://reviews.freebsd.org/D2839
Reviewed by:	delphij, mav
MFC after:	15 days

END