odhcpd: Fix dnsmasq re-reading hostfile

Depending on the dhcp uci config pidof dnsmasq can return
multiple pids. Fix re-reading of the hostfile by dnsmasq in
such case by sending SIGHUP signal to each of the returned
pids.

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

package/network/services/odhcpd/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=odhcpd
-PKG_VERSION:=2016-11-21
+PKG_VERSION:=2016-12-13
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz

package/network/services/odhcpd/files/odhcpd-update

@@ -2,4 +2,7 @@
 # Make dnsmasq reread hostfile
 
 pid=$(pidof dnsmasq)
-[ "$(readlink /proc/$pid/exe)" = "/usr/sbin/dnsmasq" ] && kill -SIGHUP $pid
+
+for i in $pid; do
+	[ "$(readlink /proc/$i/exe)" = "/usr/sbin/dnsmasq" ] && kill -SIGHUP $i
+done