Fix client use i pv6 address with default port, host was not properly wrapped by [], java servlet parsing header host will report an error#2237

lifw555 wants to merge 8 commits intoyhirose:masteryhirose/cpp-httplib:masterfrom

lifw555:Fix-Client-use-IPv6-address-with-default-port,-host-was-not-properly-wrapped-by-]lifw555/cpp-httplib:Fix-Client-use-IPv6-address-with-default-port,-host-was-not-properly-wrapped-by-]Copy head branch name to clipboard