Correct spelling mistakes.

code/botlib/be_ai_weight.c

@@ -726,7 +726,7 @@ void EvolveFuzzySeperator_r(fuzzyseperator_t *fs)
 		//every once in a while an evolution leap occurs, mutation
 		if (random() < 0.01) fs->weight += crandom() * (fs->maxweight - fs->minweight);
 		else fs->weight += crandom() * (fs->maxweight - fs->minweight) * 0.5;
-		//modify bounds if necesary because of mutation
+		//modify bounds if necessary because of mutation
 		if (fs->weight < fs->minweight) fs->minweight = fs->weight;
 		else if (fs->weight > fs->maxweight) fs->maxweight = fs->weight;
 	} //end else if