sendmsg returns a signed value, fix error check
authorjca <jca@openbsd.org>
Wed, 5 Apr 2017 14:48:48 +0000 (14:48 +0000)
committerjca <jca@openbsd.org>
Wed, 5 Apr 2017 14:48:48 +0000 (14:48 +0000)
commitcd4d7460a3bf981e68f7a29d9befeaba879f64cf
treed4522a0aac3d4440ac97e0b112ab752256c5cde1
parenta4c1d3a0c10a43cf0e67b323843e0c225d662636
sendmsg returns a signed value, fix error check

ok millert@ deraadt@
usr.sbin/rtadvd/rtadvd.c