rc.freebsd, escape - sign

src/etc/rc.freebsd

@@ -22,6 +22,7 @@ ls /usr/local/etc/rc.d/* /etc/rc.d/* | while read rc_filename; do
 	if [ "$is_enabled" == "YES" ]; then
 		if [ "$1" == "start" ]; then
 			pre_run_var="`basename $rc_filename`_opnsense_bootup_run"
+			pre_run_var="`echo $pre_run_var | /usr/bin/sed 's/-/\-/g'`"
 			eval "pre_run=\$"$pre_run_var""
 			if [ ! -z "$pre_run" ]; then
 				eval "$pre_run"