var golang.org/x/net/http2.commonLowerHeader

4 uses

	golang.org/x/net/http2 (current package)
		headermap.go#L14: 	commonLowerHeader map[string]string // Go-Canonical-Case -> lower-case
		headermap.go#L82: 	commonLowerHeader = make(map[string]string, len(common))
		headermap.go#L86: 		commonLowerHeader[chk] = v
		headermap.go#L93: 	if s, ok := commonLowerHeader[v]; ok {