Log Message:
-----------
Fix misstatement about the results of using -1 with BEGIN.
Modified Files:
--------------
pgsql/doc/src/sgml/ref:
psql-ref.sgml (r1.173 -> r1.174)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/psql-ref.sgml.diff?r1=1.173&r2=1.174)