Re: modrdn on records under "" suffix (ITS#1173)

[dave@tamos.net]

> The previous code would simply refuse the change, while in this case
> it is treated as the addition of a new root (i.e. without parent)
> entry, which can be modified only by the "root" dn.
> This is not the behaviour you intended, however. What you meant was
> to have a root entry with dn "". I don't think this is a good idea,
> though.

YEAH!  Your changes work for all the cases that I can come up with.  I
don't need a "" dn anymore. hooray!

d!