Without SFDUPES_DATABASE, a user other than root now uses
sfdupes/db.sqlite in the XDG state directory (~/.local/state by
default) instead of failing on /var/lib/sfdupes. scan creates the
missing directories there with mode 0700, as the XDG Base Directory
specification asks. An XDG_STATE_HOME that is not an absolute path is
a fatal error for every subcommand. Root keeps
/var/lib/sfdupes/db.sqlite. The help of sfdupes and of scan, and
README, say where the database is. Adds github.com/adrg/xdg, the
decided XDG library.
Model: opus-5-5
sneak