fix hotspot build failures with -D_FORTIFY_SOURCE=2 and -Wformat=1

Florian Weimer fw at
Fri Dec 12 12:57:21 PST 2008

* David Holmes:

> And here:
> -    ::write(defaultStream::output_fd(), s, (int)strlen(s));
> +    ssize_t rv = ::write(defaultStream::output_fd(), s, (int)strlen(s));
> if we are ignoring the return value anyway (which might be the real
> error here!)

Looks like a bug to me because the file descriptor might refer to a

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