Revision 302102

- Convert to OptionsNG.
- Don't install gpg-zip.1 manpage as gpg-zip script is not installed
  [1].
- Fix /dev/tty brokenness [2].

PR:		ports/170327 [1], ports/170269 [2]
Submitted by:	Alfred Bartsch <bartsch@dssgmbh.de> [1],
	  	Ben Cottrell <tamino@wolfhut.org> [2]