zeroGradient → pointPatchField Relation

File in src/OpenFOAM/fields/pointPatchFields/basic/zeroGradientIncludes file in src/OpenFOAM/fields/pointPatchFields/pointPatchField
zeroGradientPointPatchField.HpointPatchField.H
zeroGradientPointPatchFields.CpointPatchFields.H