Обсуждение: pgsql: Clarify docs about database parameter in streaming replication

Log Message:
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Clarify docs about database parameter in streaming replication primary_conninfo.
Docs were unclear on whether or not database=replication was required,
nor did they mention the FATAL error this causes if database parameter is
mentioned explicitly, whatever its value.

Modified Files:
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    pgsql/doc/src/sgml:
        high-availability.sgml (r1.53 -> r1.54)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/high-availability.sgml?r1=1.53&r2=1.54)