Fix uninitialized variable in q3-loader (found by Hendu).

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@3992 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CQ3LevelMesh.cpp

@@ -1812,7 +1812,7 @@ void CQ3LevelMesh::cleanMesh(SMesh *m, const bool texture0important)
 
 	u32 i = 0;
 	s32 blockstart = -1;
-	s32 blockcount;
+	s32 blockcount = 0;
 
 	while( i < m->MeshBuffers.size())
 	{