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/filesystems/httm/default.nix

@@ -0,0 +1,36 @@
+{ lib
+, fetchFromGitHub
+, rustPlatform
+, installShellFiles
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "httm";
+  version = "0.11.1";
+
+  src = fetchFromGitHub {
+    owner = "kimono-koans";
+    repo = pname;
+    rev = version;
+    sha256 = "GNiqWm6MsgLYjrkrbIHgKxtLmE4IJntcLd9GVRu1v2A=";
+  };
+
+  cargoSha256 = "87BkVAZ3BPtnuNUBTzdR4oiE0ZLIr5CacdYenU4V9qU=";
+
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = ''
+    installManPage httm.1
+
+    installShellCompletion --cmd httm \
+      --zsh scripts/httm-key-bindings.zsh
+  '';
+
+  meta = with lib; {
+    description = "Interactive, file-level Time Machine-like tool for ZFS/btrfs";
+    homepage = "https://github.com/kimono-koans/httm";
+    license = licenses.mpl20;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ wyndon ];
+  };
+}