(decode_switches): Make -A set really_all_files to zero

as well as setting all_files to 1.  With this change, ls -f -A prints
everything but . and .., unsorted.  Before, the -A was effectively
ignored.  From Karl Berry.

src/ls.c

@@ -957,6 +957,7 @@ decode_switches (int argc, char **argv)
 	  break;
 
 	case 'A':
+	  really_all_files = 0;
 	  all_files = 1;
 	  break;