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/misc/handlr/default.nix

@@ -0,0 +1,36 @@
+{ lib, stdenv, rustPlatform, fetchFromGitHub, shared-mime-info, libiconv, installShellFiles }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "handlr";
+  version = "unstable-2021-08-29";
+
+  src = fetchFromGitHub {
+    owner = "chmln";
+    repo = pname;
+    rev = "90e78ba92d0355cb523abf268858f3123fd81238";
+    sha256 = "sha256-wENhlUBwfNg/r7yMKa1cQI1fbFw+qowwK8EdO912Yys=";
+  };
+
+  cargoSha256 = "sha256-30fSOzWq1CoIabPWGWndi/SaCN/ckxjlbtzuwV8rk6M=";
+
+  nativeBuildInputs = [ installShellFiles shared-mime-info ];
+  buildInputs = lib.optionals stdenv.isDarwin [ libiconv ];
+
+  preCheck = ''
+    export HOME=$TEMPDIR
+  '';
+
+  postInstall = ''
+    installShellCompletion \
+      --zsh  completions/_handlr \
+      --bash  completions/handlr \
+      --fish completions/handlr.fish
+  '';
+
+  meta = with lib; {
+    description = "Alternative to xdg-open to manage default applications with ease";
+    homepage = "https://github.com/chmln/handlr";
+    license = licenses.mit;
+    maintainers = with maintainers; [ mredaelli artturin ];
+  };
+}