Subject: doc: localstatedir is used ambigously

From: Martin Castillo <[email-masked]>
Date: Fri, 22 Dec 2017 17:38:31 +0100

In the documentation, localstatedir is sometimes used as if it was /var
and sometimes as /var/guix.

examples:
the doc page 'the store' contains LOCALSTATEDIR/guix/db.
but the doc page for guix-daemon contains LOCALSTATEDIR/daemon-socket/socket