Make local DNS resolver keep track of number of requests.
Make local DNS resolver keep track of number of requests.

This is needed later on when checking if DNS is configured properly.

Signed-off-by: Thomas Hallgren <5f50a84c1fa3bcff146405017f36aec1a10a9e38@datawire.io>

datawire/telepresence,datawire/telepresence,datawire/telepresence