main/quagga set permissions on /var/empty

fixes #194
(cherry picked from commit 6edee9a7)

main/quagga/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=quagga
 pkgver=0.99.15
-pkgrel=1
+pkgrel=2
 pkgdesc="A free routing daemon replacing Zebra supporting RIP, OSPF and BGP."
 url="http://quagga.net/"
 license="GPL-2"

main/quagga/quagga.pre-install

@@ -2,5 +2,6 @@
 
 adduser -H -h /var/empty -s /bin/false -D quagga 2>/dev/null
 mkdir -p var/empty
+chmod 755 /var/empty
 exit 0