pgsql: doc: Properly punctuate "etc."

doc: Properly punctuate "etc."

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/648aa6734fefb2cc2c9bba7d6444890e727eaca1

Modified Files
--------------
doc/src/sgml/arch-dev.sgml | 2 +-
doc/src/sgml/bki.sgml | 4 ++--
doc/src/sgml/config.sgml | 4 ++--
doc/src/sgml/datetime.sgml | 2 +-
doc/src/sgml/ddl.sgml | 2 +-
doc/src/sgml/extend.sgml | 2 +-
doc/src/sgml/func.sgml | 2 +-
doc/src/sgml/glossary.sgml | 2 +-
doc/src/sgml/libpq.sgml | 8 ++++----
doc/src/sgml/manage-ag.sgml | 2 +-
doc/src/sgml/plperl.sgml | 6 +++---
doc/src/sgml/pltcl.sgml | 2 +-
doc/src/sgml/postgres-fdw.sgml | 2 +-
doc/src/sgml/protocol.sgml | 12 ++++++------
doc/src/sgml/ref/values.sgml | 2 +-
doc/src/sgml/sources.sgml | 4 ++--
doc/src/sgml/syntax.sgml | 2 +-
doc/src/sgml/xfunc.sgml | 2 +-
doc/src/sgml/xml2.sgml | 2 +-
19 files changed, 32 insertions(+), 32 deletions(-)