user is not SUPER, instead of setting the value but ignoring it
silently internally.


mysql-test/r/rpl_temporary.result:
  result update
mysql-test/t/rpl_temporary.test:
  adding test for privileges for SET SQL_LOG_BIN
sql/log.cc:
  don't need to check SUPER
sql/set_var.cc:
  refuse SET SQL_LOG_BIN if not SUPER
sql/sql_insert.cc:
  Don't need to check SUPER