Bug#1026139: golang-google-grpc: switch B-D to golang-github-golang-protobuf-1-5-dev

[Andreas Beckmann]

Source: golang-google-grpc
Version: 1.38.0-4
Severity: serious

golang-google-grpc/experimental has a
  B-D: golang-goprotobuf-dev (>= 1.4.3~)
which is no longer available but has been superseded by
golang-github-golang-protobuf-1-5-dev.


Andreas