-* `rss` - controls generation of an rss feed. On by default if the wiki is
- configured to use rss feeds, set to "no" to disable.
-* `atom` - controls generation of an atom feed. On by default if the wiki is
- configured to use atom feeds, set to "no" to disable.
+* `rss` - controls generation of an rss feed. If the wiki is configured to
+ generate rss feeds by default, set to "no" to disable. If the wiki is
+ configured to `allowrss`, set to "yes" to enable.
+* `atom` - controls generation of an atom feed. If the wiki is configured to
+ generate atom feeds by default, set to "no" to disable. If the wiki is
+ configured to `allowatom`, set to "yes" to enable.