Revert doc patch 305557984dd964ac397c6752e9d0f14646b60f15 as the values
are sometimes signed, sometimes unsigned.

Branch
------
master

Details
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http://git.postgresql.org/pg/commitdiff/53fa0c6db8e9ebbef9a2806193797735998520c6

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

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Next:	From: Tom Lane	Date: 2012-09-01 17:57:02
	Subject: pgsql: Fix mark_placeholder_maybe_needed to handle LATERAL references.
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	Subject: Re: pgsql: Cross-link to doc build requirements from install requirements.