handle git

env GIT_AUTHOR_NAME='Bryan C. Mills'
env GIT_AUTHOR_EMAIL='bcmills@google.com'
env GIT_COMMITTER_NAME=$GIT_AUTHOR_NAME
env GIT_COMMITTER_EMAIL=$GIT_AUTHOR_EMAIL

git init

at 2022-02-22T15:53:33-05:00
git add v2sub.go v2
git commit -m 'all: add package v2sub and v2sub/v2'
git branch -m main
git tag v2.0.0

at 2022-02-22T15:55:07-05:00
git add README.txt
git commit -m 'v2sub: add README.txt'

git show-ref --tags --heads
cmp stdout .git-refs

-- .git-refs --
80beb17a16036f17a5aedd1bb5bd6d407b3c6dc5 refs/heads/main
5fcd3eaeeb391d399f562fd45a50dac9fc34ae8b refs/tags/v2.0.0
-- v2/go.mod --
module vcs-test.golang.org/git/v2sub.git/v2

go 1.16
-- v2/v2sub.go --
package v2sub
-- v2sub.go --
package v2sub
-- README.txt --
This root module lacks a go.mod file.