[9front] news(1) patch: make -a and -n get along

[Lyndon Nerenberg <lyndon@orthanc.ca>]

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[ I sent this to 9front-bugs but that copy seems to have
  been swallowed by a black home. ]

This patch makes 'news -an' do the right thing.


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/n/dump/2021/0122/sys/src/cmd/news.c:44,65 - news.c:44,72
  void
  main(int argc, char *argv[])
  {
- 	int i;
+ 	int i, aflag = 0, nflag = 0;
+ 	int doupdate = 1;
+ 	int printall = 0;
+ 	void (*printer)(char*) = print_item;
  
  	Binit(&bout, 1, OWRITE);
  	if(argc == 1) {
- 		eachitem(print_item, 0, 1);
+ 		eachitem(print_item, printall, doupdate);
  		exits(0);
  	}
  	ARGBEGIN{
  	case 'a':	/* print all */
- 		eachitem(print_item, 1, 0);
+ 		doupdate = 0;
+ 		printall = 1;
+ 		// eachitem(print_item, 1, 0);
  		break;
  
  	case 'n':	/* names only */
- 		eachitem(note, 0, 0);
- 		if(n_items)
- 			Bputc(&bout, '\n');
+ 		doupdate = 0;
+ 		printer = note;
+ 		// eachitem(note, 0, 0);
+ 		// if(n_items)
+ 		// 	Bputc(&bout, '\n');
  		break;
  
  	default:
/n/dump/2021/0122/sys/src/cmd/news.c:66,73 - news.c:73,87
  		fprint(2, "news: bad option %c\n", ARGC());
  		exits("usage");
  	}ARGEND
- 	for(i=0; i<argc; i++)
- 		print_item(argv[i]);
+ 	
+ 	if (argc == 0){
+ 		eachitem(printer, printall, doupdate);
+ 	}else{
+ 		for(i=0; i<argc; i++)
+ 			print_item(argv[i]);
+ 	}
+ 	if (n_items)
+ 		Bputc(&bout, '\n');
  	exits(0);
  }