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/servers/web-apps/wiki-js/update.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p curl common-updater-scripts
+
+oldVersion="$(nix-instantiate --eval -E "with import ./. {}; lib.getVersion wiki-js" | tr -d '"')"
+latestTag="$(git ls-remote --tags --sort="v:refname" https://github.com/Requarks/wiki.git | tail -1 | awk '{ print $2 }' | sed -E "s,^refs/tags/v(.*)$,\1,")"
+
+targetVersion="${1:-$latestTag}"
+if [ ! "${oldVersion}" = "${targetVersion}" ]; then
+  update-source-version wiki-js "${targetVersion}"
+  nix-build -A wiki-js
+else
+  echo "wiki-js is already up-to-date"
+fi