func (h *RequestHeader) SetHostBytes(host []byte) {
	h.parseRawHeaders()
	h.host = append(h.host[:0], host...)
}
func (h *RequestHeader) SetHostBytes(host []byte) {
	h.parseRawHeaders()
	h.host = append(h.host[:0], host...)
}
func ( h * RequestHeader ) SetHostBytes ( host [ ] byte ) { h . parseRawHeaders ( ) h . host = append ( h . host [ : 0 ] , host ... ) }
// SetHostBytes sets Host header value.
SetHostBytes sets Host header value .