This bug was fixed in the package less - 551-1ubuntu1
---------------
less (551-1ubuntu1) groovy; urgency=medium
* On upgrade from packages that shipped less in both /bin and /usr/bin,
call update-alternatives in preinst, such that after unpacking,
/usr/bin/pager remains operational. This should resolve dpkg failing
to invoke pager by dpkg. LP: #1874953
-- Dimitri John Ledkov <email address hidden> Fri, 05 Jun 2020 16:18:51 +0100
This bug was fixed in the package less - 551-1ubuntu1
---------------
less (551-1ubuntu1) groovy; urgency=medium
* On upgrade from packages that shipped less in both /bin and /usr/bin,
call update-alternatives in preinst, such that after unpacking,
/usr/bin/pager remains operational. This should resolve dpkg failing
to invoke pager by dpkg. LP: #1874953
-- Dimitri John Ledkov <email address hidden> Fri, 05 Jun 2020 16:18:51 +0100