fixed warnings
fixed warnings

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