pgsql: Add PostgreSQL home page to --help output

Add PostgreSQL home page to --help output

Per emerging standard in GNU programs and elsewhere. Autoconf already
has support for specifying a home page, so we can just that.

Reviewed-by: Daniel Gustafsson <daniel(at)yesql(dot)se>
Discussion: https://www.postgresql.org/message-id/flat/8d389c5f-7fb5-8e48-9a4a-68cec44786fa%402ndquadrant.com

Branch
------
master

Details
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https://git.postgresql.org/pg/commitdiff/1933ae629e7b706c6c23673a381e778819db307d

Modified Files
--------------
configure | 6 ++++--
configure.in | 2 +-
contrib/oid2name/oid2name.c | 5 +++--
contrib/pg_standby/pg_standby.c | 1 +
contrib/vacuumlo/vacuumlo.c | 1 +
src/Makefile.global.in | 2 ++
src/Makefile.shlib | 2 +-
src/backend/main/main.c | 1 +
src/bin/initdb/initdb.c | 1 +
src/bin/pg_archivecleanup/pg_archivecleanup.c | 1 +
src/bin/pg_basebackup/pg_basebackup.c | 1 +
src/bin/pg_basebackup/pg_receivewal.c | 1 +
src/bin/pg_basebackup/pg_recvlogical.c | 1 +
src/bin/pg_checksums/pg_checksums.c | 1 +
src/bin/pg_config/pg_config.c | 1 +
src/bin/pg_controldata/pg_controldata.c | 1 +
src/bin/pg_ctl/pg_ctl.c | 1 +
src/bin/pg_dump/pg_dump.c | 1 +
src/bin/pg_dump/pg_dumpall.c | 1 +
src/bin/pg_dump/pg_restore.c | 1 +
src/bin/pg_resetwal/pg_resetwal.c | 1 +
src/bin/pg_rewind/pg_rewind.c | 1 +
src/bin/pg_upgrade/option.c | 1 +
src/bin/pg_waldump/pg_waldump.c | 1 +
src/bin/pgbench/pgbench.c | 5 +++--
src/bin/psql/help.c | 1 +
src/bin/scripts/clusterdb.c | 1 +
src/bin/scripts/createdb.c | 1 +
src/bin/scripts/createuser.c | 1 +
src/bin/scripts/dropdb.c | 1 +
src/bin/scripts/dropuser.c | 1 +
src/bin/scripts/pg_isready.c | 1 +
src/bin/scripts/reindexdb.c | 1 +
src/bin/scripts/vacuumdb.c | 1 +
src/interfaces/ecpg/preproc/ecpg.c | 1 +
src/test/regress/pg_regress.c | 1 +
src/tools/msvc/Solution.pm | 15 +++++++++------
37 files changed, 53 insertions(+), 14 deletions(-)