MINOR: peers: Add debugging information to "show peers".

This patch adds three counters to help in debugging peers protocol issues
to "peer" struct:
	->no_hbt counts the number of reconnection period without receiving heartbeat
	->new_conn counts the number of reconnections after ->reconnect timeout expirations.
	->proto_err counts the number of protocol errors.

(cherry picked from commit ec1c10b8391b5d1b54de2e95f9c170c9016fe680)
Signed-off-by: Willy Tarreau <w@1wt.eu>
2 files changed