confmiss
21:21 <dpkg> You have to especially tell the packaging system to reinstall config files because when they are gone, it is assumed that you want them to stay deleted.  "aptitude -o DPkg::Options::='--force-confmiss' reinstall $packagename" will restore them (man dpkg for details).  If the package uses <ucf> for config file management, ask me about <ucf confmiss>.