Our customer want to suppress the log("INFO: Response content length is not
known") when connecting to web service via proxy, he ask me to add this
patch. I notice that the log level is downgrade from WARN to INFO, but seems
this patch("if (isHttp11() &&
!"close".equalsIgnoreCase(connectionDirective))") haven't been applied, it
must have some reason, besides, isHttp11() was deprecated, so would you
please explain that why this patch haven't been patched on the new release?