Comment 1 for bug 420529

Ah. That one is from the bit where all directories to be rmdir'd on uninstall are generated. At the beginning, ${UNINSTALL}.dir0 contains the basic directories; the loop generates the parent directories of them and only keeps those that still have 'armagetronad' in their name. It adds the parent directories to the list of directories (${UNINSTALL}.dir) and repeats until no more relevant parent directories can be found.