var runtime.printBacklogIndex

4 uses

	runtime (current package)
		print.go#L33: 	printBacklogIndex int
		print.go#L49: 			n := copy(printBacklog[printBacklogIndex:], b[i:])
		print.go#L51: 			printBacklogIndex += n
		print.go#L52: 			printBacklogIndex %= len(printBacklog)