- use EXIT_{SUCCESS,FAILURE}. No object-code changes
diff --git a/shell/ash_test/printenv.c b/shell/ash_test/printenv.c
index 06df21f..c4ccda8 100644
--- a/shell/ash_test/printenv.c
+++ b/shell/ash_test/printenv.c
@@ -45,7 +45,7 @@
     {
       for (envp = environ; *envp; envp++)
 	puts (*envp);
-      exit (0);
+      exit(EXIT_SUCCESS);
     }
 
   /* printenv varname */
@@ -59,9 +59,9 @@
 	  if (*eval == '=')
 	    {
 	      puts (eval + 1);
-	      exit (0);
+	      exit(EXIT_SUCCESS);
 	    }
 	}
     }
-  exit (1);
+  exit(EXIT_FAILURE);
 }