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git/compat
Johannes Schindelin 91072e7d36 UTF-8 environment: be a little bit more defensive
It is unlikely that we have an empty environment, ever, but *if* we do,
when `environ_size - 1` is passed to `bsearchenv()` it is misinterpreted
as a real large integer.

To make the code truly defensive, refuse to do anything at all if the
size is negative (which should not happen, of course).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-09-03 07:36:41 +02:00
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