PATCH: silence libiberty warning

[Ian Lance Taylor]

Ben Elliston <bje@au1.ibm.com> writes:

> 2007-01-12  Ben Elliston  <bje@au.ibm.com>
> 
>         * choose-temp.c (choose_temp_base): Check the result of call to
>         mktemp rather than testing the length of the modified string.

This is OK.

Thanks.

Ian