const os.kindSock

4 uses

	os (current package)
		file_unix.go#L118: 	return newFile(fd, name, kindSock, true)
		file_unix.go#L134: 	kindSock
		file_unix.go#L155: 	pollable := kind == kindOpenFile || kind == kindPipe || kind == kindSock || nonBlocking
		file_unix.go#L201: 			if kind == kindSock {