Cross Reference: /external/grpc-grpc/third_party/nanopb/tests/regression/issue_203

`Name`	`Date`	`Size`
Up to higher level directory
`file1.proto`	22-Oct-2020	`123`
`file2.proto`	22-Oct-2020	`123`
`SConscript`	22-Oct-2020	`272`