const net/http.http2ClientPreface

3 uses

	net/http (current package)
		h2_bundle.go#L3264: 	http2ClientPreface = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
		h2_bundle.go#L3283: 	http2clientPreface = []byte(http2ClientPreface)
		h2_bundle.go#L4699: 		buf := make([]byte, len(http2ClientPreface))

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