K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2019-05-16T13:00:35.191338Z
K 7
svn:log
V 180
arm64: bzero buffer for ucontext in freebsd32_swapcontext().

This change is the same as r340994 for amd64.

PR:	237922
Submitted by:	Young <yangx92@hotmail.com>
MFC after:	3 days

END