Correct comment to indicate that the block tests all Points (not Frames)
Correct comment to indicate that the block tests all Points (not Frames)

opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core