K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2018-11-09T17:43:23.280694Z
K 7
svn:log
V 285
MFC r325771, r325777, r325778 (all by jhb):

Only clear a pending thread event if one is pending.
This fixes a panic when attaching to an already-stopped process.

Also do some other clean ups for control flow of sendsig section.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation

END