pkg/cache/v3: Tiny improvement to debug log in SetSnapshot (#550)
pkg/cache/v3: Tiny improvement to debug log in SetSnapshot (#550)

add type url to debug log line in addition to resource names

Signed-off-by: Sunjay Bhatia <8e0b7e202dd9796d43bda501fc1c3ad47f18345b@vmware.com>
envoyproxy/go-control-plane,envoyproxy/go-control-plane