prow/git/git.go
func (r *Repo) Config(key, value string) error {
	r.logger.Infof("Running git config %s %s", key, value)
	if b, err := r.gitCommand("config", key, value).CombinedOutput(); err != nil {
		return fmt.Errorf("git config %s %s failed: %v. output: %s", key, value, err, string(b))
	}
	return nil
}
func (r *Repo) Config(key, value string) error {
	r.logger.Infof("Running git config %s %s", key, value)
	if b, err := r.gitCommand("config", key, value).CombinedOutput(); err != nil {
		return fmt.Errorf("git config %s %s failed: %v. output: %s", key, value, err, string(b))
	}
	return nil
}
// Config runs git config.