znc: update to 1.7.3

Fixes CVE-2019-9917 (only affects modpython)

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>

net/znc/Makefile

@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=znc
-PKG_VERSION:=1.7.2
+PKG_VERSION:=1.7.3
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://znc.in/releases \
 		https://znc.in/releases/archive
-PKG_HASH:=60b4e78f54c532c32673d1ef8e5f606c530ef3a6d6b76ea1daa66459a86682a9
+PKG_HASH:=1e4cc31837a1e8e6cc310873659a167cec16a3fd4281cbc3bf364e42352c113d
 
 PKG_MAINTAINER:=Jonas Gorski <jonas.gorski@gmail.com>
 PKG_LICENSE:=Apache-2.0