contentRangeHeaderValue
fun contentRangeHeaderValue(range: LongRange?, fullLength: Long? = null, unit: RangeUnits = RangeUnits.Bytes): String(source)
fun contentRangeHeaderValue(range: LongRange?, fullLength: Long? = null, unit: String = RangeUnits.Bytes.unitToken): String(source)
Format Content-Range header value