pgbulkload - pgbulkload: Fix a broken printf-format for an error

Log Message:
-----------
Fix a broken printf-format for an error message.

Modified Files:
--------------
pgbulkload/bin:
pg_bulkload.c (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/pg_bulkload.c.diff?r1=1.7&r2=1.8)
pgbulkload/bin/pgut:
pgut.c (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/pgut/pgut.c.diff?r1=1.3&r2=1.4)
pgut.h (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/pgut/pgut.h.diff?r1=1.2&r2=1.3)