Switch format specifier for replication origins to %d
Using %u with uint16 causes warnings with -Wformat-signedness. There are many
other warnings, but for now change only these since
c920fe4818 already changed
the message string for most of them.
Per report from Peter Eisentraut
Discussion: https://www.postgresql.org/message-id/
31e63649-0355-7088-831e-
b07d5f908a8c%40enterprisedb.com