https://bugs.openldap.org/show_bug.cgi?id=9490
--- Comment #3 from SATOH Fumiyasu fumiyas@osstech.co.jp --- (In reply to Quanah Gibson-Mount from comment #2)
Commits: • 5d5f4318 by Quanah Gibson-Mount at 2021-03-04T17:11:35+00:00 ITS#9490 - Add keepalive settings to ldap.conf
+.B _KEEPALIVE_IDLE
should be `.B KEEPALIVE_IDLE`? (Remove the heading `_`)