dnsmasq: add rapid commit config option

Add config option rapidcommit to enable support for DHCPv4 rapid
commit (RFC4039)

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

package/network/services/dnsmasq/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=dnsmasq
 PKG_VERSION:=2.80
-PKG_RELEASE:=7
+PKG_RELEASE:=8
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=http://thekelleys.org.uk/dnsmasq

package/network/services/dnsmasq/files/dnsmasq.init

@@ -828,6 +828,7 @@ dnsmasq_start()
 	append_bool "$cfg" sequential_ip "--dhcp-sequential-ip"
 	append_bool "$cfg" allservers "--all-servers"
 	append_bool "$cfg" noping "--no-ping"
+	append_bool "$cfg" rapidcommit "--dhcp-rapid-commit"
 
 	append_parm "$cfg" logfacility "--log-facility"