var crypto/x509.systemRoots

4 uses

	crypto/x509 (current package)
		root.go#L17: 	systemRoots    *CertPool
		root.go#L23: 	return systemRoots
		root.go#L27: 	systemRoots, systemRootsErr = loadSystemRoots()
		root.go#L29: 		systemRoots = nil