bug#1042: 23.0.60; read-char can evaluate to non-character

[martin rudalics]

> In "$ emacs -Q", when I evaluate:
>
>    (read-char)
>
> and press C-0, I get:
>
>    67108912
>
> However, (characterp 67108912) is nil, and (char-to-string 67108912)
> throws an error. Thus I expect an error also from read-char in this
> case.

The doc-string of `read-char' says

    If the character has modifiers, they are resolved and reflected to the
    character code if possible (e.g. C-SPC -> 0).

Do you have a particular use case that calls for throwing an error here?

> Besides, in `char-resolve-modifers', "modifiers" is misspelled.

I fixed that.

Thanks, martin.