K 10
svn:author
V 8
vangyzen
K 8
svn:date
V 27
2016-01-13T22:34:55.675056Z
K 7
svn:log
V 181
libthr: const-ify two variables

Make the default umutex and urwlock initializers const,
because they can be, and as a microoptimization.

MFC after:	5 days
Sponsored by:	Dell Inc.

END