Itemize: @w for no mark does not work for HTML output

[Christophe Jarry]

Dear developpers,

I tried to make an itemized list by writing the following in a Texinfo file:

 @itemize @w{}   
 @item @option{--build=} platform on which the program is compiled,
 @item @option{--host=} platform on which the program runs,
 @item @option{--target=} target platform on which the program is processed.
 @end itemize

Info and PDF outputs are just fine: there is no bullet for any address@hidden', 
but HTML output still shows a bullet for each.

If I replace address@hidden' with address@hidden', Info output is fine, HTML 
output still fails, but also does the PDF output (using texi2pdf) with the 
following error:

 ./loongson64-2.0.en.texinfo:244: Missing number, treated as zero.
 <to be read again> 
                    }
 @item ...nt @hbox to address@hidden @itemcontents @kern 
                                                   @itemmargin address@hidden 
address@hidden
 l.244 @item
             @option{--build=} platform on which the program is compiled,

Although texinfo manual 
(http://www.gnu.org/software/texinfo/manual/texinfo/texinfo.html#itemize) 
clearly states that:

"If you don't want any mark at all, use @w. (When you write the mark command 
such as @bullet after an @itemize command, you may omit the ‘{}’.)"

Christophe