K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2021-01-17T05:11:55.025586Z
K 7
svn:log
V 189
tty_wait_background: improve locking.

(cherry picked from commit a008bdeda3b8278fe600cf83ecf44acd1ccb30b6)

Git Hash:   71dfe98e34acdcb8b0f90880de28611e66662e91
Git Author: kib@FreeBSD.org
END