a simple pre bug fix

[Darin Adler]

On Oct 30, 2003, at 6:06 AM, Dirk Mueller wrote:

> testcase?

When text surrounded by a 'white-space:pre" span, each carriage return 
is rendered twice.

     <p>line one<br/>
     <span style="white-space: pre">line two
     line three</span></p>

     -- Darin