Log Message:
-----------
Adjust phrasing of complaints about multi-byte COPY delimiter strings.
Per pgsql-hackers discussion of 2009-02-17.
Modified Files:
--------------
    pgsql/src/backend/commands:
        copy.c (r1.305 -> r1.306)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/copy.c?r1=1.305&r2=1.306)