sysutils/backuppc: Update pkg-descr and COMMENT

PR:		183241
Requested by:	makc
Approved by:	Alexander Moisseev <moiseev@mezonplus.ru> (maintainer)


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@371470 35697150-7ecd-e111-bb59-0022644237b5
- Update to upstream version 0.17
- Update project URL in pkg-descr and MASTER_SITES accordingly

PR:		194499
Submitted by:	tkato432@yahoo.com


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@371471 35697150-7ecd-e111-bb59-0022644237b5