Gawk manual: 7.2 Referring to an Array Element

[Hermann Peifer]

Here a small enhancement request related to the Gawk manual. Section 7.2 
says:
> ... array[index] ...
> ... index in array ..

http://www.gnu.org/software/gawk/manual/gawk.html#Reference-to-Elements

Some newcomers (like me some time ago) could try to literally use "for 
(index in array)...", which will throw a fatal error,as index is a 
reserved word for a built-in string function.

It would perhaps be better to consistently use "subscript" in the 
documentation, as in section 7.4

> array[subscript] = value


Hermann