pgsql: Fix typos in comments, code and documentation

Fix typos in comments, code and documentation

While on it, newlines are removed from the end of two elog() strings.
The others are simple grammar mistakes. One comment in pg_upgrade
referred incorrectly to sequences since a7e5457.

Author: Justin Pryzby
Discussion: /messages/by-id/20221230231257.GI1153@telsasoft.com
Backpatch-through: 11

Branch
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REL_13_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/1c89549ca48d04195bfc774534a54cf84b797e8b

Modified Files
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doc/src/sgml/parallel.sgml | 2 +-
doc/src/sgml/ref/alter_table.sgml | 2 +-
doc/src/sgml/sources.sgml | 4 ++--
src/backend/access/common/bufmask.c | 2 +-
src/backend/access/spgist/spgutils.c | 2 +-
src/backend/jit/llvm/llvmjit.c | 2 +-
src/backend/optimizer/util/tlist.c | 2 +-
src/backend/utils/adt/ruleutils.c | 2 +-
src/bin/pg_upgrade/info.c | 9 ++++-----
src/test/regress/expected/expressions.out | 2 +-
src/test/regress/sql/expressions.sql | 2 +-
11 files changed, 15 insertions(+), 16 deletions(-)