backend stuff for the manual

[prj@po.cwru.edu (Paul Jarc)]

For nnchoke-request-newgroups, the description of the date format is
not very informative.  It should be mentioned that it is the format
produced by (current-time-string), and that it can be converted to a
(high . low) date via (date-to-time).  nnml ignores the date; the
manual should mention that it is safe to do this, and that the date is
useful only if listing the new groups is faster than listing all
groups.  (Assuming this is indeed correct; is it?)

For nnchoke-request-create-group, the third argument is not
documented.  How is it supposed to be used?


paul