pgsql: pgstat: run pgindent on pgstat.c/h.

pgstat: run pgindent on pgstat.c/h.

Upcoming commits will touch a lot of the pgstats code. Reindenting separately
makes it easier to keep the code in a well-formatted shape each step.

Author: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/20220303021600.hs34ghqcw6zcokdh@alap3.anarazel.de

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/a3a75b982b5bb6fba95ad8b3d48e70439dcd2329

Modified Files
--------------
src/backend/postmaster/pgstat.c  | 28 ++++++++++++++++------------
src/include/pgstat.h             |  4 ++--
src/tools/pgindent/typedefs.list |  3 +++
3 files changed, 21 insertions(+), 14 deletions(-)