K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2020-12-09T03:22:44.370719Z
K 7
svn:log
V 222
libsysdecode: decode _UMTX_OP flags

Assume that UMTX_OP with a double underbar following is a flag, while any
underbar+alphanumeric combination immeiately following is an op.

This was a part of D27325.

Reviewed by:	kib

END