The problem is that the commands COM_STMT_CLOSE, COM_STMT_RESET,
COM_STMT_SEND_LONG_DATA weren't being logged to the general log.
The solution is to log the general log the aforementioned commands.
mysql-test/t/mysql_client_test-master.opt:
Also log to table.
sql/sql_prepare.cc:
Log COM_STMT_CLOSE, COM_STMT_RESET and COM_STMT_SEND_LONG_DATA.
tests/mysql_client_test.c:
Add test case for Bug#28386
Logging behavior changed in early 5.1. (The filename was never right, but
the "opt" file is unnecessary in 5.0 anyway.)
mysql-test/t/mysql_client_test-master.opt:
Logging behavior changed in early 5.1.
