While looking at the documentation for this command, I realized that
it was not accessible from the index. So I added an @kindex entry
for it.

2009-04-01  Joel Brobecker  <brobecker@adacore.com>

        * gdb.texinfo (Print Settings): Add kindex for command "set
        print frame-arguments".

After rebuilding the HTML documentation, I'm now able to see an entry
for this command.

OK to commit?

Thanks,
-- 
Joel