uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/tools/backup/duply/default.nix

@@ -0,0 +1,41 @@
+{ lib, stdenv, fetchurl, coreutils, python3, duplicity, gawk, gnupg, bash
+, gnugrep, txt2man, makeWrapper, which
+}:
+
+stdenv.mkDerivation rec {
+  pname = "duply";
+  version = "2.4";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/project/ftplicity/duply%20%28simple%20duplicity%29/2.4.x/duply_${version}.tgz";
+    hash = "sha256-DCrp3o/ukzkfnVaLbIK84bmYnXvqKsvlkGn3GJY3iNg=";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = [ txt2man ];
+
+  postPatch = "patchShebangs .";
+
+  installPhase = ''
+    mkdir -p "$out/bin"
+    mkdir -p "$out/share/man/man1"
+    install -vD duply "$out/bin"
+    wrapProgram "$out/bin/duply" --set PATH \
+        ${lib.makeBinPath [ coreutils python3 duplicity gawk gnupg bash gnugrep txt2man which ]}
+    "$out/bin/duply" txt2man > "$out/share/man/man1/duply.1"
+  '';
+
+  meta = with lib; {
+    description = "Shell front end for the duplicity backup tool";
+    longDescription = ''
+      Duply is a shell front end for the duplicity backup tool
+      https://www.nongnu.org/duplicity. It greatly simplifies its usage by
+      implementing backup job profiles, batch commands and more. Who says
+      secure backups on non-trusted spaces are no child's play?
+    '';
+    homepage = "https://duply.net/";
+    license = licenses.gpl2;
+    maintainers = [ maintainers.bjornfor ];
+    platforms = lib.platforms.unix;
+  };
+}