findmissing: fix typo

There is no ./scripts/local/local_database_setup.py but
./scripts/local/local_database_setup.sh.  Fix the typo.

BUG=none
TEST=none

Change-Id: Ibf1ed641b4cccd3cf96bb8bb57f6431473f079a4
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/3461264
Tested-by: Tzung-Bi Shih <tzungbi@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Commit-Queue: Guenter Roeck <groeck@chromium.org>
diff --git a/contrib/findmissing/getopen.py b/contrib/findmissing/getopen.py
index c25e5db..3e5989e 100755
--- a/contrib/findmissing/getopen.py
+++ b/contrib/findmissing/getopen.py
@@ -17,7 +17,7 @@
 chromeos-missing-patches GCP project.
 
 Prerequisites to execute this script locally (RUN ONCE):
->> ./scripts/local/local_database_setup.py
+>> ./scripts/local/local_database_setup.sh
 
 All locally executed commands must be run in this directory's
 virtual env (source env/bin/activate) before running any commands.