fxload: add license

pkgs/os-specific/linux/fxload/default.nix

···
 
 stdenv.mkDerivation {
   name = "fxload-2002_04_11";
-  
+
   src = fetchurl {
     url = mirror://sourceforge/linux-hotplug/fxload-2002_04_11.tar.gz;
     sha256 = "1hql93bp3dxrv1p67nc63xsbqwljyynm997ysldrc3n9ifi6s48m";
···
     mkdir -p $out/share/usb
   '';
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = http://linux-hotplug.sourceforge.net/?selected=usb;
     description = "Tool to upload firmware to Cypress EZ-USB microcontrollers";
-    platforms = stdenv.lib.platforms.linux;
+    license = licenses.gpl2;
+    platforms = platforms.linux;
   };
 }