error message if the table open or the index creation failed.
Updated portuguese error messages.
Fix for OS/2 that affected CHECK TABLE.


Docs/manual.texi:
  Changelog.
libmysql/errmsg.c:
  Updated portuguese error messages
mysys/my_copy.c:
  Fix for OS/2
sql/net_pkg.cc:
  cleanup
sql/share/portuguese/errmsg.txt:
  Updated portuguese error messages
sql/slave.cc:
  Cleanup.
  Fixed bug that caused client to hang because mysqld never did
  send an error message if the table open or the index creation failed.
sql/sql_parse.cc:
  Moved handling of 'no_send_ok' to fetch_nx_table.
sql/sql_table.cc:
  Cleanup.