localmount: add "no" in front of network file system types

On Linux, this was not an issue, but we may have been attempting to
mount network file systems twice on *bsd.

Reported-by: powerman-asdf@yandex.ru
x-Gentoo-Bug: 462210
x-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=462210

init.d/localmount.in

@@ -17,7 +17,7 @@ start()
 	# Mount local filesystems in /etc/fstab.
 	local types="noproc" x= no_netdev=
 	for x in $net_fs_list $extra_net_fs_list; do
-		types="${types},${x}"
+		types="${types},no${x}"
 	done
 
 	if [ "$RC_UNAME" = Linux ]; then