[PATCH 5/8] [v2] wsdapi: Implement generation of XML from WSDXML structures.

[Owen Rudge]

> In principle you already know the length here.  So either have wide_to_utf8
> return a length param, or merge these two functions.

wide_to_utf8 is used independently of populate_xml_string in later (as of yet unsubmitted) patches. While I could merge them now, it seems a bit counterproductive to then have to unmerge them later. I'll add a length return parameter as suggested.

Thanks,

Owen