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/usr/lib/mysql-testsuite/r/perror.result is in percona-server-test-5.6 5.6.22-rel71.0-0ubuntu4.

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Illegal error code: 10000
MySQL error code 1062 (ER_DUP_ENTRY): Duplicate entry '%-.192s' for key %d
MySQL error code 1076 (ER_READY): %s: ready for connections.
Version: '%s'  socket: '%s'  port: %d
MySQL error code 1459 (ER_TABLE_NEEDS_UPGRADE): Table upgrade required. Please do "REPAIR TABLE `%-.32s`" or dump/reload to fix it!
MySQL error code 1461 (ER_MAX_PREPARED_STMT_COUNT_REACHED): Can't create more than max_prepared_stmt_count statements (current value: %lu)