cfgwarn
void cfgwarn(const char *, ...) /* immediate warns */
cfgwarn("The use of `defopt' is deprecated");
cfgwarn("obsolete option `%s' will be ignored", name);
cfgwarn("undeclared option `%s' added to IDENT", name);
cfgwarn("already have %s `%s=%s'", type, name,
cfgwarn("already have %s `%s'", type, name);
cfgwarn("%s `%s' is not defined", type, name);
cfgwarn("device `%s' has multiple classes "
cfgwarn("warning: maxusers already defined at %s:%hu",