[TYPO3-core] RFC: fix XML prologue and DOCTYPE issue

[Wolfgang Klinger]

 *hiya!*

 On Sun, 26 Feb 2006, Martin Kutschker wrote the following:
> Theoretically the linebreaks shouldn't matter. Does anyone know if some browser react differently when you add or remove linebreaks within a DOCTYPE?
> 
> Why do you want to remove them?

 Possibly because of this report: 
 http://bugs.typo3.org/view.php?id=2685

 bye
 Wolfgang