Did someone modify default-directory?

[John Wiegley]

One of the things I've noticed in Emacs trunk is that in Eshell when I type "cd 
~", I see this:

  /Users/johnw $

But in Emacs 23 I see this:

  ~ $

I have been searching through the ChangeLog, but cannot see why 
default-directory should be an expanded name in Eshell buffers, when it isn't 
if I visit the ~ directory using dired, for example.  Does anyone have some 
light to shed for me?

Thanks, John