[COMMITTERS] pgsql: Fix uninitialized variable in dshash.c.

Fix uninitialized variable in dshash.c.

A bugfix for commit 8c0d7bafad36434cb08ac2c78e69ae72c194ca20.  The code
would have crashed if hashtable->size_log2 ever had the same value as
hashtable->control->size_log2 by coincidence.

Per Valgrind.

Author: Thomas Munro
Reported-By: Tomas Vondra
Discussion: https://postgr.es/m/e72fb33c-4f31-f276-e972-263d9b59554d%402ndquadrant.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/0fb9e4ace5ce4d479d839a720f32b99fdc87f455

Modified Files
--------------
src/backend/lib/dshash.c | 9 +++++++++
1 file changed, 9 insertions(+)


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