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/applications/version-management/redmine/update.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env nix-shell
+#!nix-shell --pure -i bash -p cacert bundix
+
+# Do these steps before running this script:
+#   1. Copy Gemfile from new Redmine version to this folder
+#   2. Manually modify the database lines in Gemfile (diff the two files, it's obvious)
+
+pkg_dir="$(dirname "$0")"
+cd ${pkg_dir}
+
+for file in "gemset.nix" "Gemfile.lock"; do
+  if [ -f ${file} ]; then
+    rm ${file}
+  fi
+done
+
+bundix -l