Give program a return value

diff --git a/munter.py b/munter.py
index 8b23b25fd74a6b5010cfd9d697f28c266326d18f..2ee36d4757a443e3a14b6a92328a2cbc19f926d7 100755 (executable)
--- a/munter.py
+++ b/munter.py
@@ -136,5 +136,7 @@ def main():
     else:
         print_ugly_estimate(time_estimate)
 
+    return 0
+
 if __name__ == "__main__":
-    main()
+    sys.exit(main())