Limits the number of reopening attempts when establishing a single
	TCP connection. All these attempts must still complete before the
	applicable connection opening timeout expires.

	By default and when connect_retries is set to zero, Squid does not
	retry failed connection opening attempts.

	The (not recommended) maximum is 10 tries. An attempt to configure a
	higher value results in the value of 10 being used (with a warning).

	Squid may open connections to retry various high-level forwarding
	failures. For an outside observer, that activity may look like a
	low-level connection reopening attempt, but those high-level retries
	are governed by forward_max_tries instead.

	See also: connect_timeout, forward_timeout, icap_connect_timeout,
	and forward_max_tries.