[libvirt] c&p error in api doc

[Thomas Treutner <thomas scripty at>]

I think there's a c&p error: 

http://libvirt.org/html/libvirt-libvirt.html#virStoragePoolUndefine   

"Returns:  a virStoragePoolPtr object, or NULL if creation failed"

I assume it is  "0 on success, -1 on failure" as the return is of type int. 


kr,t