func AppendHTTPDate(dst []byte, date time.Time) []byte {
	dst = date.In(time.UTC).AppendFormat(dst, time.RFC1123)
	copy(dst[len(dst)-3:], strGMT)
	return dst
}
func AppendHTTPDate(dst []byte, date time.Time) []byte {
	dst = date.In(time.UTC).AppendFormat(dst, time.RFC1123)
	copy(dst[len(dst)-3:], strGMT)
	return dst
}
func AppendHTTPDate ( dst [ ] byte , date time . Time ) [ ] byte { dst = date . In ( time . UTC ) . AppendFormat ( dst , time . RFC1123 ) copy ( dst [ len ( dst ) - 3 : ] , strGMT ) return dst }
// AppendHTTPDate appends HTTP-compliant (RFC1123) representation of date
// to dst and returns the extended dst.
AppendHTTPDate appends HTTP - compliant ( RFC1123 ) representation of date to dst and returns the extended dst .