prow/config/secret/secret.go
func LoadSingleSecret(path string) ([]byte, error) {
	b, err := ioutil.ReadFile(path)
	if err != nil {
		return nil, fmt.Errorf("error reading %s: %v", path, err)
	}
	return bytes.TrimSpace(b), nil
}
func LoadSingleSecret(path string) ([]byte, error) {
	b, err := ioutil.ReadFile(path)
	if err != nil {
		return nil, fmt.Errorf("error reading %s: %v", path, err)
	}
	return bytes.TrimSpace(b), nil
}
// LoadSingleSecret reads and returns the value of a single file.