ion-3: switch to pname+verison, format

pkgs/applications/window-managers/ion-3/default.nix

···
 { lib, stdenv, fetchurl, xlibsWrapper, lua, gettext, groff }:
 
 stdenv.mkDerivation rec {
-  name = "ion";
+  pname = "ion";
   version = "3-20090110";
-  meta = {
-    description = "Tiling tabbed window manager designed with keyboard users in mind";
-    homepage = "http://modeemi.fi/~tuomov/ion";
-    platforms = with lib.platforms; linux;
-    license = lib.licenses.lgpl21;
-  };
+
   src = fetchurl {
     url = "http://tuomov.iki.fi/software/dl/ion-${version}.tar.gz";
     sha256 = "1nkks5a95986nyfkxvg2rik6zmwx0lh7szd5fji7yizccwzc9xns";
   };
+
   buildInputs = [ xlibsWrapper lua gettext groff ];
+
   buildFlags = [ "LUA_DIR=${lua}" "X11_PREFIX=/no-such-path" "PREFIX=\${out}" ];
+
   installFlags = [ "PREFIX=\${out}" ];
+
+  meta = with lib; {
+    description = "Tiling tabbed window manager designed with keyboard users in mind";
+    homepage = "http://modeemi.fi/~tuomov/ion";
+    platforms = with platforms; linux;
+    license = licenses.lgpl21;
+    maintainers = with maintainers; [ ];
+  };
 }