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/data/documentation/gnome-user-docs/default.nix

@@ -0,0 +1,41 @@
+{ lib, stdenv
+, fetchurl
+, gettext
+, gnome
+, itstool
+, libxml2
+, yelp-tools
+}:
+
+stdenv.mkDerivation rec {
+  pname = "gnome-user-docs";
+  version = "42.0";
+
+  src = fetchurl {
+    url = "mirror://gnome/sources/gnome-user-docs/${lib.versions.major version}/${pname}-${version}.tar.xz";
+    sha256 = "srJ9oEEAu90vTw5bw48tBW2V+jZWcgFj9kNqMWfV6QU=";
+  };
+
+  nativeBuildInputs = [
+    gettext
+    itstool
+    libxml2
+    yelp-tools
+  ];
+
+  enableParallelBuilding = true;
+
+  passthru = {
+    updateScript = gnome.updateScript {
+      packageName = pname;
+    };
+  };
+
+  meta = with lib; {
+    description = "User and system administration help for the GNOME desktop";
+    homepage = "https://help.gnome.org/users/gnome-help/";
+    license = licenses.cc-by-30;
+    maintainers = teams.gnome.members;
+    platforms = platforms.all;
+  };
+}