[manual] old remnants in doc page?

[John W. Eaton]

On 19-Sep-2008, Francesco Potorti` wrote:

| In The unwind_protect Statement:
| 
| |   This is useful to protect temporary changes to global variables from
| |possible errors.  For example, the following code will always restore
| |the original value of the global variable `frobnositcate' even if an
| |error occurs while performing the indexing operation.
| 
| But the example code contains no indexing operation, only "...".
| 
| |Without `unwind_protect', the value of FROBNOSTICATE would not be
| |restored if an error occurs while performing the indexing operation
| 
| same as above

Fixed.

Thanks,

jwe