The current backup printing does not fit in with the rest of the info at
all. Change to be more consistant.

Old:

Backup Files    :
MODIFIED	/etc/pacman.conf
UNMODIFIED	/etc/makepkg.conf

New:

Backup Files    : /etc/pacman.conf [modified]
                  /etc/makepkg.conf [unmodified]

Signed-off-by: morganamilo <morganamilo@archlinux.org>