libxml2, python-libxml2: Prevent external entities from being loaded
Updated fix for openSUSE-SU-2014:0645-1 because of a regression that
caused xmllint to break.
- Submitted by Vítězslav Čížek (vitezslav_cizek)
Fixed bugs
bnc#876652
VUL-0: CVE-2014-0191: libxml2: external parameter entity loaded when entity substitution is disabled