pgsql: Mention ANALYZE boolean options in documentation.

Mention ANALYZE boolean options in documentation.

Commit 41b54ba78e allowed not only VACUUM but also ANALYZE options
to take a boolean argument. But it forgot to update the documentation
for ANALYZE. This commit adds the descriptions about those ANALYZE
boolean options into the documentation.

This patch also updates tab-completion for ANALYZE boolean options.

Reported-by: Kyotaro Horiguchi
Author: Fujii Masao
Reviewed-by: Masahiko Sawada, Michael Paquier
Discussion: https://postgr.es/m/CAHGQGwHTUt-kuwgiwe8f0AvTnB+ySqJWh95jvmh-qcoKW9YA9g@mail.gmail.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/03de5187d50af67d154a47cf00899290dca13003

Modified Files
--------------
doc/src/sgml/ref/analyze.sgml | 18 ++++++++++++++++--
doc/src/sgml/release-12.sgml  |  4 ++--
src/bin/psql/tab-complete.c   |  2 ++
3 files changed, 20 insertions(+), 4 deletions(-)