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/security/snallygaster/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, python3Packages
+, fetchFromGitHub
+}:
+
+python3Packages.buildPythonApplication rec {
+  pname = "snallygaster";
+  version = "0.0.12";
+
+  src = fetchFromGitHub {
+    owner = "hannob";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-JXuRCUWpoGhBbU38XMEQovCiVfbyBMJ+SIrt3iqFuAo=";
+  };
+
+  propagatedBuildInputs = with python3Packages; [
+    urllib3
+    beautifulsoup4
+    dnspython
+  ];
+
+  checkInputs = with python3Packages; [
+    pytestCheckHook
+  ];
+
+  pytestFlagsArray = [
+    # we are not interested in linting the project
+    "--ignore=tests/test_codingstyle.py"
+  ];
+
+  meta = with lib; {
+    description = "Tool to scan for secret files on HTTP servers";
+    homepage = "https://github.com/hannob/snallygaster";
+    license = licenses.cc0;
+    maintainers = with maintainers; [ hexa ];
+  };
+}