Fix bad check.

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Автор: cyberium


<pre style='white-space:pre-wrap;width:81ex'>Fix bad check.

Thank @evil-at-wow for pointing.</pre>


Подробнее... (https://github.com/cmangos/mangos-wotlk/commit/f153ca0e9df4309ef56b90f10668398c5dc55884)