message: Fix header guard names
diff: #pragma once
  -#ifndef VSNRAY_DETAIL_RANGE_FOR_H
  -#define VSNRAY_DETAIL_RANGE_FOR_H 1
  +#ifndef VSNRAY_DETAIL_RANGE_H
  +#define VSNRAY_DETAIL_RANGE_H 1
  #include "macros.h"
  @@ -147,4 +147,4 @@ private:
  } // visionaray
  -#endif // VSNRAY_DETAIL_RANGE_FOR_H
  +#endif // VSNRAY_DETAIL_RANGE_H
  