New port: sysutils/backupuser

backupuser is a command line utility, which automates the creation
of backups of a user's home directory. An accompanying utility
lets a user verify the integrity of files on another storage device.
Special backup options exist for the root user.

WWW: http://www.olivermahmoudi.com/programming/backup-strategies

PR: 224735
Submitted by: Oliver Mahmoudi <fbsd@olivermahmoudi.com>