[COMMITTED] Fix off-by-one bug in tst-fwrite-error

[Andreas Schwab]

Siddhesh Poyarekar <siddhesh@redhat.com> writes:

> tst-fwrite-error did not allocate enough space for the string 'world'
> and its NULL terminator.

There is no NUL terminator.

> I fixed this as obvious.

I don't see anything that needs to change.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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