[imp] two blank lines in compose area

[Rob]

> Hello,
>
> I'm using the latest CVS HEAD versions of Horde and IMP (pop3).
>
> There always seems to be two blank lines present in the "body" textarea of
a
> new Compose window.  Is there any reason for this, or any way to get rid
of
> it?  My trailer.txt file is 0 bytes.
>
> Thanks,
>
> Rob.
>

My signature is also empty (as far as I can tell).  However, it seems that
$identity->getSignature() on line 1075 of compose.php returns "\n" (at
least), since empty($sig) returns false on the next line.