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/text/transifex-client/default.nix

@@ -0,0 +1,32 @@
+{ lib, buildPythonApplication, fetchPypi
+, python-slugify, requests, urllib3, six, setuptools, GitPython }:
+
+buildPythonApplication rec {
+  pname = "transifex-client";
+  version = "0.14.4";
+
+  propagatedBuildInputs = [
+    urllib3 requests python-slugify six setuptools GitPython
+  ];
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "11dc95cefe90ebf0cef3749c8c7d85b9d389c05bd0e3389bf117685df562bd5c";
+  };
+
+  # https://github.com/transifex/transifex-client/issues/323
+  prePatch = ''
+    substituteInPlace requirements.txt \
+      --replace "python-slugify<5.0.0" "python-slugify"
+  '';
+
+  # Requires external resources
+  doCheck = false;
+
+  meta = with lib; {
+    homepage = "https://www.transifex.com/";
+    license = licenses.gpl2Only;
+    description = "Transifex translation service client";
+    maintainers = with maintainers; [ sikmir ];
+  };
+}