gnupg: 2.1.8 -> 2.1.9

pkgs/tools/security/gnupg/21.nix

···
 assert x11Support -> pinentry != null;
 
 stdenv.mkDerivation rec {
-  name = "gnupg-2.1.8";
+  name = "gnupg-2.1.9";
 
   src = fetchurl {
     url = "mirror://gnupg/gnupg/${name}.tar.bz2";
-    sha256 = "18w14xp0ynzzwpklyplkzbrncds1hly4k2gjx115swch8qgd1f53";
+    sha256 = "1dpp555glln6fldk72ad7lkrn8h3cr2bg714z5kfn2qrawx67dqw";
   };
 
   postPatch = stdenv.lib.optionalString stdenv.isLinux ''