Update sngrep.sh

debian/resources/sngrep.sh

@@ -18,8 +18,10 @@ if [ ."$cpu_architecture" = ."arm" ]; then
 	cd /usr/src/sngrep && make install
 else
 	#package install
-	echo "deb http://packages.irontec.com/debian $os_codename main" > /etc/apt/sources.list.d/sngrep.list
-	wget http://packages.irontec.com/public.key -q -O - | apt-key add -
+	if [ ."$os_codename" = ."jessie" ]; then
+		echo "deb http://packages.irontec.com/debian $os_codename main" > /etc/apt/sources.list.d/sngrep.list
+		wget http://packages.irontec.com/public.key -q -O - | apt-key add -
+	fi
 	apt-get update
 	apt-get install -y sngrep
 fi