var golang.org/x/sys/unix.signalNameMapOnce

2 uses

	golang.org/x/sys/unix (current package)
		syscall_unix.go#L33: 	signalNameMapOnce sync.Once
		syscall_unix.go#L79: 	signalNameMapOnce.Do(func() {

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)