Log Message:
-----------
Some marginal editorial improvements and updates in the tutorial.
Modified Files:
--------------
pgsql/doc/src/sgml:
advanced.sgml (r1.51 -> r1.52)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/advanced.sgml.diff?r1=1.51&r2=1.52)
query.sgml (r1.47 -> r1.48)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/query.sgml.diff?r1=1.47&r2=1.48)
start.sgml (r1.42 -> r1.43)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/start.sgml.diff?r1=1.42&r2=1.43)
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