[12729] Fix some warnings reported by static analysis

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Автор: stfx


<pre style='white-space:pre-wrap;width:81ex'>[12729] Fix some warnings reported by static analysis</pre>


Подробнее... (https://github.com/cmangos/mangos-wotlk/commit/2abb945f670d716504c8a7738cced49241b41e52)