Update 'int' protocol documentation mention to be "signed", per request
from Dmitriy Igrishin

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/305557984dd964ac397c6752e9d0f14646b60f15

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

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