[hackers] [sbase] Audit yes(1) || FRIGN

[git]

commit f0792e41e8654edfba4485ed84b9448010cb7f9d
Author: FRIGN <d...@frign.de>
Date:   Sat Feb 28 21:11:10 2015 +0100

    Audit yes(1)
    
    Oh well, time to simplify the loop.
    Also, change the comment on unreachable code to something more clear.

diff --git a/yes.c b/yes.c
index 0ac224a..eddc0f0 100644
--- a/yes.c
+++ b/yes.c
@@ -19,14 +19,10 @@ main(int argc, char *argv[])
                usage();
        } ARGEND;
 
-       if (argc == 0) {
-               for (;;)
-                       puts("y");
-       } else {
-               for (i = 0; ; i++, i %= argc) {
-                       printf("%s", argv[i]);
-                       putchar(i == argc - 1 ? '\n' : ' ');
-               }
+       for (i = 0; ; i++, i %= argc ? argc : 1) {
+               fputs(argc ? argv[i] : "y", stdout);
+               putchar((!argc || i == argc - 1) ? '\n' : ' ');
        }
-       return 1; /* should not reach */
+
+       return 1; /* not reached */
 }