libgupnp-dlna: bug fix in gupnp-dlna-load.c
libgupnp-dlna: bug fix in gupnp-dlna-load.c

add missing brances in process_parent(), fix
parsing issue.

GNOME/gupnp-dlna,GNOME/gupnp-dlna,luisbg/gupnp-dlna,GNOME/gupnp-dlna,luisbg/gupnp-dlna