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/applications/version-management/git-and-tools/svn2git/default.nix

@@ -0,0 +1,38 @@
+{ lib, stdenv, fetchFromGitHub, ruby, makeWrapper, git }:
+
+stdenv.mkDerivation rec {
+  pname = "svn2git";
+  version = "2.4.0";
+
+  src = fetchFromGitHub {
+    owner = "nirvdrum";
+    repo = "svn2git";
+    rev = "v${version}";
+    sha256 = "sha256-w649l/WO68vYYxZOBKzI8XhGFkaSwWx/O3oVOtnGg6w=";
+  };
+
+  nativeBuildInputs = [ ruby makeWrapper ];
+
+  dontBuild = true;
+
+  installPhase = ''
+    mkdir -p $out
+    cp -r lib $out/
+
+    mkdir -p $out/bin
+    substituteInPlace bin/svn2git --replace '/usr/bin/env ruby' ${ruby}/bin/ruby
+    cp bin/svn2git $out/bin/
+    chmod +x $out/bin/svn2git
+
+    wrapProgram $out/bin/svn2git \
+      --set RUBYLIB $out/lib \
+      --prefix PATH : ${git}/bin
+  '';
+
+  meta = {
+    homepage = "https://github.com/nirvdrum/svn2git";
+    description = "Tool for importing Subversion repositories into git";
+    license = lib.licenses.mit;
+    platforms = lib.platforms.unix;
+  };
+}