miniupnpd: add patience to firewall include

Occasionally, mostly at startup, miniupnpd reports "Another app is
currently holding the xtables lock. Perhaps you want to use the -w
option?"

Take iptables' advice and wait up to 1 second before giving up.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>

net/miniupnpd/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=miniupnpd
 PKG_VERSION:=2.2.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE_URL:=https://miniupnp.tuxfamily.org/files
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz

net/miniupnpd/files/firewall.include

@@ -1,8 +1,9 @@
 #!/bin/sh
 # miniupnpd integration for firewall3
 
-IPTABLES=/usr/sbin/iptables
-IP6TABLES=/usr/sbin/ip6tables
+IPTABLES="/usr/sbin/iptables"
+IP6TABLES="/usr/sbin/ip6tables"
+IPTARGS="-w 1"
 
 $IPTABLES -t filter -N MINIUPNPD 2>/dev/null
 $IPTABLES -t nat -N MINIUPNPD 2>/dev/null
@@ -19,7 +20,7 @@ iptables_prepend_rule() {
 	local chain="$3"
 	local target="$4"
 
-	$iptables -t "$table" -I "$chain" $($iptables -t "$table" --line-numbers -nL "$chain" | \
+	$iptables "$IPTARGS" -t "$table" -I "$chain" $($iptables "$IPTARGS" -t "$table" --line-numbers -nL "$chain" | \
 		sed -ne '$s/[^0-9].*//p') -j "$target"
 }