refactoring

diff --git a/fortune-mod/util/rot.c b/fortune-mod/util/rot.c
index 2f7e2ce779bd7b0bed42ae4c8efb3836c0c01bb6..f13e9337802ba2380bbac9bd64180323c6ae23db 100644 (file)
--- a/fortune-mod/util/rot.c
+++ b/fortune-mod/util/rot.c
@@ -1,20 +1,15 @@
-/*
- * An extremely simpleminded function. Read characters from stdin,
- * rot13 them, and put them on stdout.  Totally unnecessary, of course.
- */
-
+// An extremely simpleminded function. Read characters from stdin,
+// rot13 them, and put them on stdout.  Totally unnecessary, of course.
 #include <stdio.h>
 #include <ctype.h>
-#include <stdlib.h>
 
 int main(void)
 {
     int a;
-
     while ((a = getchar()) != EOF)
     {
         putchar(isupper(a) ? ('A' + (a - 'A' + 13) % 26)
                            : islower(a) ? ('a' + (a - 'a' + 13) % 26) : a);
     }
-    exit(0);
+    return 0;
 }