COV 8: don't leak mem when returning an error.
COV 8: don't leak mem when returning an error.

Signed-off-by: Angus Salkeld <86b65304d27d8de73dd7d624c33df7e088f8d94b@redhat.com>

rubenk/libqb,kgaillot/libqb,davidvossel/libqb,gao-yan/libqb,ClusterLabs/libqb,ClusterLabs/libqb,kgaillot/libqb,rubenk/libqb,kgaillot/libqb,gao-yan/libqb,ClusterLabs/libqb,davidvossel/libqb