postgresql.conf server_min_messages

I now realize that server_min_messages should have been
log_min_messages.  The log_* grouping was done after I added
server_min_messages and I didn't see the similarity.  Also,
show_parser_stats, etc. should be log_parser_stats because the output
goes to the log and not to the user's terminal.

I may clean that up in 7.4.  Too late for 7.3.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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