• Set LANG=en_US.UTF-8 in MAKE_ENV, because sometimes Elixir will complain about not having an UTF-8 locale when building in poudriere (which may affect binary packages).

• Install source files (with a SRC option, default on), which can then be used by Emacs' alchemist-mode.el to provide a working "go to source" function.

• Remove pkg-plist, which is now mostly auto-generated.

PR: 201125
Submitted by: olgeni