ethtool: update from 3.15 to 3.16

pkgs/tools/misc/ethtool/default.nix

···
 { stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
-  name = "ethtool-3.15";
+  name = "ethtool-3.16";
 
   src = fetchurl {
     url = "mirror://kernel/software/network/ethtool/${name}.tar.xz";
-    sha256 = "16kgw9y4fisldf1z6zpw3v965cc8nram0dycacwkc0js4l76klw8";
+    sha256 = "11m2ghjgnbjbvxamgjkr94cw9sz1znla8rkw923svhq4m4zxvq6n";
   };
 
   meta = with stdenv.lib; {