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: https://postgr.es/m/20221230231257.GI1153@telsasoft.com
Backpatch-through: 11

Branch
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REL_14_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/e373e5578bc39af4f20a4b70c5db1895d0e2d3d1

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(-)