minibuf.texi question

I compared minibuf.texi with FSF version and of course there are some differences. I'm not sure about how to handle some part, so I'm asking here. 1. At read-from-minibuffer documentation, FSF manual says: *Usage note:* The INITIAL-CONTENTS argument and the DEFAULT argument are two alternative features for more or less the same job. It does not make sense to use both features in a single call to `read-from-minibuffer'. In general, we recommend using DEFAULT, since this permits the user to insert the default value when it is wanted, but does not burden the user with deleting it from the minibuffer on other occasions. FSF recommends DEFAULT over INITIAL-CONTENTS. Is that so in XEmacs too? 2. FSF minibuf.texi includes doc about read-passwd. However, that file is in xemacs-base package. Where should I document them? 3. read-string, read-command and read-variable doesn't have DEFAULT argument while FSF version has. Is that intentional or just because no one has requested? I'd prefer having DEFAULT argument to have better history support. -- Yoshiki Hayashi