[PATCH 1/4] create named itset.

[Eli Zaretskii]

> From: Yao Qi <yao@codesourcery.com>
> Date: Thu, 30 Aug 2012 10:40:22 +0800
> 
> +When a new named itset is defined, which has already been defined before,
> +@value{GDBN} will query whether to overwrite the existing named itset
> +or dicard the new definition.
      ^^^^^^
"discard"

> +@item set resolve-duplicate overwrite
> +When a new named itset is defined, which has already been defined before,
> +@value{GDBN} will overwrite the existing named itset with the new
> +definition.

I wonder whether we need 2 almost identical descriptions, instead of 1
description with 2 possible values.

Otherwise OK.

Thanks.