--- /dev/null
+self: super: {
+ defaultGemConfig = super.defaultGemConfig // {
+ doing = attrs: {
+ postInstall = ''
+ installPath=$(cat $out/nix-support/gem-meta/install-path)
+ sed -i $installPath/lib/doing/wwid.rb -e "/Create a backup copy for the undo command/ {n;d}"
+ '';
+ };
+ };
+}