lang/lua51 is working the same way lang/lua52, chase ports using lua 5.1
Make the default lua lua52
Make all lua ports using USES=lua
Approved by: portmgr (implicit)
the music player daemon.
Note that the submission has been modified to set the submitter as the
port maintainer, and to use UNIQUENAME in the DOCSDIR, to avoid clashes
with mpd.
PR: ports/177334
Submitted by: David Demelier <demelier.david@gmail.com>
