files to check if log bin is turned on

mysql-test/include/have_log_bin.inc:
  New BitKeeper file ``mysql-test/include/have_log_bin.inc''
mysql-test/r/have_log_bin.require:
  New BitKeeper file ``mysql-test/r/have_log_bin.require''

mysql-test/include/have_log_bin.inc

+-- require r/have_log_bin.require
+disable_query_log;
+show variables like "log_bin";
+enable_query_log;

mysql-test/r/have_log_bin.require

+Variable_name	Value
+have_log_bin	ON