src/vs/workbench/contrib/logs/common/logsActions.ts/SetLogLevelAction/getLabel
class SetLogLevelAction:	private getLabel(level: LogLevel, current?: LogLevel): string {
		let label: string;
		switch (level) {
			case LogLevel.Trace: label = nls.localize('trace', "Trace"); break;
			case LogLevel.Debug: label = nls.localize('debug', "Debug"); break;
			case LogLevel.Info: label = nls.localize('info', "Info"); break;
			case LogLevel.Warning: label = nls.localize('warn', "Warning"); break;
			case LogLevel.Error: label = nls.localize('err', "Error"); break;
			case LogLevel.Off: label = nls.localize('off', "Off"); break;
		}
		return level === current ? `$(check) ${label}` : label;
	}