updated for version 7.3.1019
Problem:    These do not work with the new regexp engine: \%o123, \%x123,
	    \%d123, \%u123 and \%U123.
Solution:   Implement these items.
Added tag v7-3-1019 for changeset 08ac46980953
updated for version 7.3.1020
Problem:    Not all patterns are tested with auto / old / new engine.
Solution:   Test patterns with three values of 'regexpengine'.
Added tag v7-3-1020 for changeset f7944ce459ac