test: fix leak of authentication info
test: fix leak of authentication info

The 'auths' struct in the test driver was not free()d. This was easy to
miss because the default XML doesn't include auth info.

Reviewed-by: Daniel Henrique Barboza <627b089ad62deae9aaf06ccfa2c9056df28927e0@gmail.com>
Signed-off-by: Daniel P. Berrangé <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>

olafhering/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,olafhering/libvirt,jfehlig/libvirt,libvirt/libvirt,zippy2/libvirt,jardasgit/libvirt,nertpinx/libvirt,jfehlig/libvirt,libvirt/libvirt,nertpinx/libvirt,jardasgit/libvirt,libvirt/libvirt,jfehlig/libvirt,crobinso/libvirt,olafhering/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,nertpinx/libvirt,zippy2/libvirt,jardasgit/libvirt,nertpinx/libvirt,zippy2/libvirt,nertpinx/libvirt,libvirt/libvirt,olafhering/libvirt,fabianfreyer/libvirt,crobinso/libvirt,crobinso/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,zippy2/libvirt,fabianfreyer/libvirt,crobinso/libvirt