unrar: update to 5.2.4

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

utils/unrar/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2006-2014 OpenWrt.org
+# Copyright (C) 2006-2015 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=unrar
-PKG_VERSION:=5.2.3
+PKG_VERSION:=5.2.4
 PKG_RELEASE:=1
 
 PKG_SOURCE:=unrarsrc-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://www.rarlab.com/rar
-PKG_MD5SUM:=1c14a30052bf5e0b1a02fd9e3e638452
+PKG_MD5SUM:=9611a2a5d5b6dce39ee5b3770bab2387
 PKG_MAINTAINER:=Álvaro Fernández Rojas <noltari@gmail.com>
 
 PKG_LICENSE:=UnRAR