bug#7025: Viper's `viper-deflocalvar' macro doesn't indent properly

[Chong Yidong]

Vegard Øye <vegard_oye@hotmail.com> writes:

> The `viper-deflocalvar' macro in viper-init.el is used for defining
> buffer-local variables. However, it doesn't indent properly:
>
>     (viper-deflocalvar foo nil
>                        "Docstring")
>
> The following patch adds a `declare' statement to fix the indentation

Thanks.  I've committed your patch to trunk, except for the font-lock
stuff (we don't generally provide font lock support for such
package-specific compatibility macros).