[CMake] Warning on --help-command-* when outputting to html

[Alexander Neundorf]

On Monday 21 July 2008, Mike Jackson wrote:
> I get the following warning when trying to save the contents of a
> help command to an html file:
>
> 517:[mjackson at thor:bin]$ ./cmake --help-command write_file out.html
> WARNING: ComputeSectionLinkPrefix failed for ""
>
> Not sure if this is benign or what, but it does get annoying...

Please update from cvs HEAD, should be fixed now.
It now also skips the index if there is only one item.

Alex