Log Message:
Updated net/sslh to version 1.18.
Pkgsrc changes :
- taking over maintainership ;
- updated patch for getopt_long because of the update.

Upstream changes :
- Added USELIBPCRE to make use of regex engine optional ;
- Added support for RFC4366 SNI and RFC7301 ALPN (Travis Burtrum) ;
- Changed connection log to include the name of the probe that triggered ;
- Changed configuration file format: 'probe' field is no longer required,
  'name' field can now contain 'tls' or 'regex',
  with corresponding options (see example.cfg) ;
- Added 'log_level' option to each protocol,
  which allows to turn off generation of log at each connection ;
- Added 'keepalive' option.