/usr/bin/script bug

[Colin Percival]

   There's a bug in /usr/bin/script which (among other things) causes
a non-interactive portupgrade to fail in odd ways.  Could someone
look at the following PRs:

bin/56166 (included patch fixes bug)
bin/57414 (included patch documents bug, doesn't fix it)
ports/57415 (reports portupgrade symptom)
bin/59036 (included patch fixes this bug and other tty-related problems)
ports/60534 (reports portupgrade symptom)

before this gets reported even more times?

   I've also got some small and hopefully non-controversial patches
in bin/59988, conf/60676, and bin/60758 which are looking for
committers. :)

Colin Percival