OpenBSD netcat 1.237

• Disallow -T with = when arguments are not key=value pairs
• Add SOCKS4A support to nc(1)'s proxy (-X) mode
• Add SOCKS4A to help text
• For SOCKS4A don't perform a local hostname lookup that we're not going to use
• Fix HTTP CONNECT proxy support to not treat responses like "HTTP/1.0 200poo" as success
• limitiation -> limitation
• Sort process_tls_opt[]
• Add ALPN TLS option, so you can specify -T alpn=value
• Document -Talpn
• Use strtonum() instead of atoi(), and error out for bad numbers
• Allow network programs select DSCP_VA for network ToS
• Sort the va keyword to be in alpha order, some programs use bsearch()