Fix *_get_xml_desc() functions
Fix *_get_xml_desc() functions

The *_get_xml_desc() functions were working fine as tested on
Fedora-14 and php-5.3.6-1.fc14.i686 however some things were
not done right way and it made issues on another version of
PHP so this fixes it.

Signed-off-by: Lyre <8a3ad5e7eaa2296ba1c969ebaf630b7183f20378@skybility.com>

vtolstov/libvirt-php,php/pecl-virtualization-libvirt,libvirt/libvirt-php,vtolstov/libvirt-php,php/pecl-virtualization-libvirt,vtolstov/libvirt-php,php/pecl-virtualization-libvirt,martijnotto/libvirt-php,zippy2/libvirt-php,zippy2/libvirt-php,vtolstov/libvirt-php,tucksaun/libvirt-php,tucksaun/libvirt-php,martijnotto/libvirt-php,tucksaun/libvirt-php,KnightSwarm/libvirt-php,KnightSwarm/libvirt-php,zippy2/libvirt-php,KnightSwarm/libvirt-php,KnightSwarm/libvirt-php,php/pecl-virtualization-libvirt,martijnotto/libvirt-php,libvirt/libvirt-php,martijnotto/libvirt-php,libvirt/libvirt-php,tucksaun/libvirt-php,KnightSwarm/libvirt-php