Improve markup of unnest example

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=7f40e30309b5c8f19b1ac86c463ab0ea99907873

Modified Files
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doc/src/sgml/func.sgml |    3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

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Next:	From: Bruce Momjian	Date: 2011-01-07 03:45:37
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	Subject: pgsql: Update sequence_1.out for recent changes in sequenceregression