Allow a CLI keyword to be a prefix of another CLI keyword.
Allow a CLI keyword to be a prefix of another CLI keyword.

Signed-off-by: Janne Peltonen <184f24496cb678cb2ae7fb0b4232a4cbe2bea47a@nokia.com>
Reviewed-by: Valentin Radulescu <5c0267d222138450b4835b40b746ecdf0117cfc8@enea.com>

OpenFastPath/ofp,OpenFastPath/ofp,OpenFastPath/ofp,OpenFastPath/ofp