Log Message:
-----------
Mention log_statement_stats can not be enabled with the other options.
Modified Files:
--------------
pgsql-server/doc/src/sgml:
runtime.sgml (r1.276 -> r1.277)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/src/sgml/runtime.sgml.diff?r1=1.276&r2=1.277)