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/development/python-modules/git-sweep/default.nix

@@ -0,0 +1,30 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, GitPython
+}:
+
+buildPythonPackage rec {
+  pname = "git-sweep";
+  version = "0.1.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1csp0zd049d643d409rfivbswwzrayb4i6gkypp5mc27fb1z2afd";
+  };
+
+  propagatedBuildInputs = [ GitPython ];
+
+  # no tests
+  doCheck = false;
+
+  pythonImportsCheck = [ "gitsweep" ];
+
+  meta = with lib; {
+    description = "A command-line tool that helps you clean up Git branches";
+    homepage = "https://github.com/arc90/git-sweep";
+    license = licenses.mit;
+    maintainers = with maintainers; [ pSub ];
+  };
+
+}