trim trailing space in src/sampling

...hInterpolation/meshToMesh/calculateMeshToMeshAddressing.C

...MeshInterpolation/meshToMesh/calculateMeshToMeshWeights.C

src/sampling/meshToMeshInterpolation/meshToMesh/meshToMesh.C

src/sampling/meshToMeshInterpolation/meshToMesh/meshToMesh.H

...eshToMeshInterpolation/meshToMesh/meshToMeshInterpolate.C

src/sampling/sampledSet/writers/vtk/vtkSetWriter.C

...ampling/sampledSurface/isoSurface/sampledIsoSurfaceCell.C

...ng/sampledSurface/thresholdCellFaces/thresholdCellFaces.H