[pgpool-committers: 4750] pgpool: Update doc version to 3.7.4.

[Bo Peng]

Update doc version to 3.7.4.

Branch
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V3_7_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=952bb50a1604c15579642d136ee69d5c99802450

Modified Files
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doc.ja/src/sgml/version.sgml | 2 +-
doc/src/sgml/version.sgml    | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)