Proto commits in google/go-replayers

These 2 commits are when the Protocol Buffers files have changed:

2021-05-28

Commit:	c3f3f8f
Author:	Koichi Shiraishi	2021-05-28 21:08:32 +0900

grpcreplay/proto: add go_package option

The documentation is generated from this commit.

Commit:	11fb739
Author:	Jonathan Amsterdam	2019-06-03 08:04:03 -0400

grpcreplay