pg.1: Add -h, --help, -V, --version
pg.1: Move (plus) options near (minus) option at the beginning
Merge branch 'pg-manual-page-long-options' of https://github.com/jaalto/util-linux

* 'pg-manual-page-long-options' of https://github.com/jaalto/util-linux:
  pg.1: Move (plus) options near (minus) option at the beginning
  pg.1: Add -h, --help, -V, --version