Update usage of `drunk_sum` runnable

diff --git a/run/drunk_sum.py b/run/drunk_sum.py
index 80c9aadccc6097ee584e310030a970d1c9934ea7..004d98e8537d646769aff8b247684fab1e64e562 100755 (executable)
--- a/run/drunk_sum.py
+++ b/run/drunk_sum.py
@@ -11,6 +11,11 @@ if __name__ == "__main__":
             "\"2010-10-20\"",
             "\"2020-10-20\""
         ))
+        print("Or: python3 drunk_sum.py {} {} {}".format(
+            "\"espresso lungo;espresso\"",
+            "\"2010-10-20\"",
+            "\"2020-10-20\""
+        ))
         exit(1)
     g = CoffeebotGetter()
     g.loadDrunkSum(argv[1], argv[2], argv[3])