pgsql: Renumber GUC_* constants.

Renumber GUC_* constants.

This moves all the regular flags back together (for aesthetic reasons), and
makes room for more GUC_UNIT_* types.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/0fec000365c25fd89ea583673de226e816dba60f

Modified Files
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src/include/utils/guc.h |   21 ++++++++++-----------
1 file changed, 10 insertions(+), 11 deletions(-)