[pgpool-committers: 7964] pgpool: Doc: fix typo in Japanese release note.

[Masaya Kawamoto]

Doc: fix typo in Japanese release note.

Branch
------
V4_0_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=5f9d2e85e2bf3f4d371f4e6d6b2e6e56fb113683

Modified Files
--------------
doc.ja/src/sgml/release-3.6.sgml | 2 +-
doc.ja/src/sgml/release-3.7.sgml | 2 +-
doc.ja/src/sgml/release-4.0.sgml | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)