Upgrade: 9.0.5->9.4

   Postgresql-9.0.5 is installed in /usr/local/pgsql/ and -9.4's data/
subdirectory is installed in /var/lib/pgsql/9.4/ with the executable in
/usr/bin/.

   Running pg_upgrade fails at the end because of a locale difference:

lc_ctype cluster values do not match:  old "C", new "en_US.UTF-8"
Failure, exiting

   How do I remedy this?

Thanks in advance,

Rich