K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2017-10-19T00:38:14.106033Z
K 7
svn:log
V 135
Tidy up pmc support at execve.

The proc-specific check is inherently racy, so the code can just unlock
beforehand.

MFC after:	1 week

END