• Update to the latest GitHub commit: current version is from 2015 and is not compatible with modern OpenSSL implementations
• Set PORTVERSION to the version number as reported by `httperf -V'
• Increase buffer size in do_recv() to match TLS record size which can be up to 16kB [1]
• When using TLS 1.1 or TLS 1.2, the first SSL_connect() may often return error, while subsequent requests work fine -- to mitigate this, try to SSL_connect() a little harder [2]

Approved by: maintainer timeout

PR: 230680 [1], 230681 [2]