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/filesystems/ioztat/default.nix

@@ -0,0 +1,58 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, installShellFiles
+, python3
+}:
+
+stdenv.mkDerivation rec {
+  pname = "ioztat";
+  version = "2.0.1";
+
+  src = fetchFromGitHub {
+    owner = "jimsalterjrs";
+    repo = "ioztat";
+    rev = "v${version}";
+    sha256 = "sha256-8svMijgVxSuquPFO2Q2HeqGLdMkwhiujS1DSxC/LRRk=";
+  };
+
+  nativeBuildInputs = [ installShellFiles ];
+  buildInputs = [ python3 ];
+
+  prePatch = ''
+    patchShebangs .
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    install -vDt $out/bin -m 0555 ioztat
+
+    if [ -f ioztat.8 ]; then
+      installManPage ioztat.8
+    fi
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    inherit version;
+    inherit (src.meta) homepage;
+    description = "A storage load analysis tool for OpenZFS";
+    longDescription = ''
+      ioztat is a storage load analysis tool for OpenZFS. It provides
+      iostat-like statistics at an individual dataset/zvol level.
+
+      The statistics offered are read and write operations per second, read and
+      write throughput per second, and the average size of read and write
+      operations issued in the current reporting interval. Viewing these
+      statistics at the individual dataset level allows system administrators
+      to identify storage "hot spots" in larger multi-tenant
+      systems -- particularly those with many VMs or containers operating
+      essentially independent workloads.
+    '';
+    license = licenses.bsd2;
+    platforms = with platforms; linux ++ freebsd;
+    maintainers = with maintainers; [ numinit ];
+  };
+}