avoid narrowing conversion
avoid narrowing conversion

Tweak code in vtkVelodyneHDLSource to avoid a narrowing conversion
inside {}'s, which is ill-formed in C++11.

Kitware/VeloView,frizaro/Veloview,frizaro/Veloview,Kitware/VeloView,frizaro/Veloview,Kitware/VeloView,Kitware/VeloView,Kitware/VeloView,frizaro/Veloview