Cross Reference: /external/golang-protobuf/protoc-gen-go/testdata/imports/test_b_1

`Name`	`Date`	`Size`
Up to higher level directory
`m1.pb.go`	22-Oct-2020	`2.5K`
`m1.proto`	22-Oct-2020	`1.8K`
`m2.pb.go`	22-Oct-2020	`2.5K`
`m2.proto`	22-Oct-2020	`1.8K`