PATCH: Doxygen improvements

[Geert Janssens]

On Tuesday 2 March 2010, Jesse Weinstein wrote:
> OK, second try at providing a cleanly-applying patch of various typo
> fixes and additions to the doxygen comments in dialog-print-check.c .
> Most of the changes are simply typo fixes; I also added descriptions for
> some functions that lacked them, and a file header (otherwise all the
> function comments will be mostly inaccessible).
> 
> If this is received well, I'll try and do some more.
> 
> Jesse Weinstein
> 
Committed with minor changes in r18778. Thanks a lot !

Your patch used tabs for indentation in some places. The code cleanup that 
Christian is performing with astyle uses spaces instead. So to prevent 
Christian from having to run astyle again on dialog-print-check.c, I changed 
the tabs into spaces.

Other than that, keep the patches coming...

Geert