This file is indexed.

/usr/lib/mysql-testsuite/r/lowercase2.require is in percona-xtradb-cluster-testsuite-5.5 5.5.34-25.9+dfsg-0ubuntu4.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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Variable_name	Value
lower_case_table_names	2