include/my_sys.h:
  Fixes from review (use version in log_event.cc instead)
mysql-test/r/ctype_cp932.result:
  Updated test for bug#11338 (logging of prepared statement w/ blob type)
mysql-test/t/ctype_cp932.test:
  udpated test for bug#11338 (logging of prepared statement w/ blob type)
mysys/charset.c:
  Fixes from review (use version in log_event.cc instead)
sql/item.cc:
  Fixes from review (store character_set_client differently so that
  fix can be merged forward to 5.0)
sql/item.h:
  Fixes from review
sql/log_event.cc:
  Fixes from review, str_to_hex is now used by item.cc
sql/log_event.h:
  Added prototype for str_to_hex (now used by item.cc)
sql/sql_prepare.cc:
  Fixes from review, store character_set_client differently so that 
  Item_param::query_val_str can use it.