K 10
svn:author
V 8
vangyzen
K 8
svn:date
V 27
2016-01-23T20:49:52.514215Z
K 7
svn:log
V 176
MFC r293858

libthr: const-ify two variables

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

Sponsored by:	Dell Inc.

END