type io.onceError

5 uses

	io (current package)
		pipe.go#L16: type onceError struct {
		pipe.go#L21: func (a *onceError) Store(err error) {
		pipe.go#L29: func (a *onceError) Load() error {
		pipe.go#L46: 	rerr onceError
		pipe.go#L47: 	werr onceError