pgsql: postgres_fdw: Report ANALYZE to pgstats after importing statisti

postgres_fdw: Report ANALYZE to pgstats after importing statistics.

Commit 28972b6fc should have done this, but didn't.

While at it, remove an extra blank line in fetch_remote_statistics()
introduced by that commit.

Reported-by: Chao Li <lic(at)highgo(dot)com>
Co-authored-by: Chao Li <lic(at)highgo(dot)com>
Co-authored-by: Etsuro Fujita <etsuro(dot)fujita(at)gmail(dot)com>
Discussion: https://postgr.es/m/6ED81190-B398-44C9-A1E9-8EFE4ED183AF%40gmail.com
Backpatch-through: 19

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/bb4142fb68cfab35b7c5f8db7645196c50662631

Modified Files
--------------
contrib/postgres_fdw/expected/postgres_fdw.out | 40 ++++++++++++++++++++++++++
contrib/postgres_fdw/postgres_fdw.c | 18 +++++++++++-
contrib/postgres_fdw/sql/postgres_fdw.sql | 10 +++++++
3 files changed, 67 insertions(+), 1 deletion(-)