[pgpool-committers: 5046] pgpool: Improve pg_md5 docs and error message.

[Bo Peng]

Improve pg_md5 docs and error message.

Patch provided by Jesper Pedersen and modified by me.

Branch
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V3_7_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=2c15faa8769f7c89f11332114db2d811bd36ab47

Modified Files
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doc.ja/src/sgml/ref/pg_md5.sgml | 41 +++++++++++++++++++++++++++++++++++------
doc/src/sgml/ref/pg_md5.sgml    | 32 +++++++++++++++++++++++++++-----
src/tools/pgmd5/pg_md5.c        |  2 +-
3 files changed, 63 insertions(+), 12 deletions(-)