[Libreoffice] Replace (Byte|Uni|Xub_)String with O(U)String: Fill() method is missing

[Stephan Bergmann]

On 11/01/2011 07:50 PM, Eike Rathke wrote:
> Wouldn't they benefit/suffer from the stable ABI requirement then,
> whereas in comphelper they don't? Or am I mislead?

Yup, that was the original rationale for introducing 
comphelper/string.hxx, see the comment at the start of the file.

Stephan