session: warn with the original URI
session: warn with the original URI

Before:
(lt-spicy:18372): GSpice-WARNING **: 10:57:21.246: Double set of 'port' in URI 'spice://foo'

After:
(lt-spicy:18654): GSpice-WARNING **: 10:57:21.246: Double set of 'port' in URI 'spice://foo:23?port=24'

Signed-off-by: Marc-AndrÃ© Lureau <a6f2b960a4aca61381fc650a67901b2ac8e83e6d@redhat.com>
Acked-by: Frediano Ziglio <55d48b080b2e443e395cde84d2c83b135a4ff48e@redhat.com>

flexVDI/spice-gtk,flexVDI/spice-gtk