Function mergeSetHeader

transfer.go:882–890

(dst *http.Header, src http.Header)

}

func mergeSetHeader(dst *http.Header, src http.Header) {
	if *dst == nil {
		*dst = src
		return
	}
	for k, vv := range src {
		(*dst)[k] = vv
	}
}

func (b *body) Close() error {
	b.mu.Lock()