Shorter

aaf5a4a6 · Frans Kaashoek · 13a1ddd7 · aaf5a4a6
--- a/bin/avar.cc
+++ b/bin/avar.cc
@@ -7,19 +7,10 @@
 int
 main(int ac, char **av)
 {
-  int op;
  if (ac == 2 && strcmp(av[1], "on") == 0)
-    op = 1;
-  else if (ac == 2 && strcmp(av[1], "off") == 0)
-    op = 0;
-  else {
-    fprintf(1, "usage: %s on|off\n", av[0]);
-    exit();
-  }
-
-  if (op) {
    mtenable_type(mtrace_record_ascope, "xv6-asharing");
-  } else {
+  else if (ac == 2 && strcmp(av[1], "off") == 0)
    mtdisable("xv6-asharing");  
-  }
+  else
+    fprintf(1, "usage: %s on|off\n", av[0]);
 }