const go/printer.UseSpaces

3 uses

	go/printer (current package)
		printer.go#L1284: 	UseSpaces                  // use spaces instead of tabs for alignment
		printer.go#L1338: 		if cfg.Mode&UseSpaces != 0 {

	go/format
		format.go#L30: 	printerMode = printer.UseSpaces | printer.TabIndent | printerNormalizeNumbers