
reftable_merged_table_max_update_index() as defined by reftable/ merged.{c, h} returns the maximum update index in a merged table. Since this function is currently unexercised, add tests for it. Mentored-by: Patrick Steinhardt <ps@pks.im> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>