Don't include timestamps in doc to make build binary reproducible

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=slony1-engine.git;a=commitdiff;h=b77271dd0ec60a0e4de0079f4e67e8593ec08a72

Modified Files
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doc/adminguide/stylesheet.dsl | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)