[pgpool-committers: 4973] pgpool: Fix redundant messages when log_client_messages is enabled.

[Tatsuo Ishii]

Fix redundant messages when log_client_messages is enabled.

Also add missing test files in the previous commit.
Patch contributed by Takuma Hoshiai.

Branches
--------
SCRAM_AUTH
master

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=8745853a86076131557e48c52fb0b8619b8055e4

Modified Files
--------------
.../tests/019.log_client_messages/tests/copy.data  | 30 ++++++++++++++++++++++
.../019.log_client_messages/tests/describe.data    | 12 +++++++++
.../tests/extended_query.data                      | 21 +++++++++++++++
.../019.log_client_messages/tests/function.data    | 15 +++++++++++
.../019.log_client_messages/tests/simple.data      |  4 +++
5 files changed, 82 insertions(+)