NOTE: The lempar.c file is not under version control. It is copied from the
git repository at https://github.com/sqlite/sqlite/blob/master/tool/lempar.c
Pinned at commit 5e5683ae466667c61aa4cd5127850f080508eab9 (Jan 31, 2021)
https://github.com/sqlite/sqlite/blob/5e5683ae466667c61aa4cd5127850f080508eab9/tool/lempar.c