cmAudLabelFile.c:Fixed uninitialzed 'rc' in cmGrObjWorldExt().

cmAudLabelFile.c

   
 cmAlfRC_t cmAudLabelFileOpen(   cmAlfH_t h, const cmChar_t* fn )
 {
-  cmAlfRC_t rc;
+  cmAlfRC_t rc             = kOkAlfRC;
   cmAlf_t*  p              = _cmAlfHandleToPtr(h);
   cmChar_t* lineBuf        = NULL;
   unsigned  lineBufByteCnt = 0;