mpdris2: install locale files to correct location

The package included outdated intltool makefiles, resulting in installation of
local files to `$out/'@DATADIRNAME'`. Running `intltoolize -f` forces
regeneration of the Makefile and fixes the issue.

pkgs/tools/audio/mpdris2/default.nix

@@ -11,6 +11,10 @@ stdenv.mkDerivation rec {
     sha256 = "0zdmamj2ldhr6y3s464w8y2x3yizda784jnlrg3j3myfabssisvz";
   };
 
+  preConfigure = ''
+    intltoolize -f
+  '';
+
   buildInputs = [ intltool autoreconfHook pythonPackages.wrapPython ];
   propagatedBuildInputs = with pythonPackages; [ python pygtk dbus-python ];
   pythonPath = with pythonPackages; [ mpd pygtk dbus-python notify ];