pg_restore error message during ENOSPC with largeobj

I overflowed my homedir while testing with pg_reload, and got:
|pg_restore: error: could not write to large object (result: 18446744073709551615, expected: 30)

src/bin/pg_dump/pg_backup_archiver.c

f (res != AH->lo_buf_used)
fatal("could not write to large object (result: %lu, expected: %lu)",
(unsigned long) res, (unsigned long) AH->lo_buf_used);

; 18446744073709551615 - 1<<64
-1

I guess casting to long was the best option c. 2002 (commit 6faf8024f) but I
gather the modern way is with %z.

I confirmed this fixes the message.
|pg_restore: error: could not write to large object (result: -1, expected: 16384)

--
Justin