Error in Info example.

[Mark M. Henwood]

The example at Gawk:Reading Files:Changing Fields is incorrect.  The field
identifier should be $2 to get the output shown in the example.

Presently Reads:

$ awk '{ nboxes = $3 ; $3 = $3 - 10
>        print nboxes, $3 }' inventory-shipped

Should Read:

$ awk '{ nboxes = $2 ; $2 = $2 - 10
>        print nboxes, $2 }' inventory-shipped

Again, this change is only needed so that the output when run matches the
numbers given in the info document.

Mark M. Henwood