K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2017-09-27T00:57:05.256718Z
K 7
svn:log
V 256
mtx: drop the tid argument from _mtx_lock_sleep

tid must be equal to curthread and the target routine was already reading
it anyway, which is not a problem. Not passing it as a parameter allows for
a little bit shorter code in callers.

MFC after:	1 week

END