Add pg_settings units display for "commit_delay" (ms).

Also remove unnecessary units designation in postgresql.conf.sample.

Branch
------
master

Details
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http://git.postgresql.org/pg/commitdiff/e74727440c4d3df443dbd3d0a2201751883316ce

Modified Files
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src/backend/utils/misc/guc.c                  |    3 ++-
src/backend/utils/misc/postgresql.conf.sample |    2 +-
2 files changed, 3 insertions(+), 2 deletions(-)

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Next:	From: Bruce Momjian	Date: 2012-08-14 20:26:19
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