Merge Revision revid:svn-v4:16c675df-0fcb-4bc9-8058-dcc011a37293:branches/zip:6790 from MySQL InnoDB
Original revid:svn-v4:16c675df-0fcb-4bc9-8058-dcc011a37293:branches/zip:6790
Original Authors: jyang
Original commit message:
branches/zip: Fix bug #51356: "many valgrind errors in error messages
with concurrent ddl". Null terminate the name string returned
from innobase_convert_identifier() call when reporting DB_DUPLICATE_KEY
error in create_table_def().
rb://266 approved by Marko