pgbulkload - pgbulkload: optimize binary parser.

Log Message:
-----------
optimize binary parser.

Modified Files:
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pgbulkload/bin/expected:
load_bin.out (r1.14 -> r1.15)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_bin.out?r1=1.14&r2=1.15)
pgbulkload/lib:
parser_binary.c (r1.15 -> r1.16)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/parser_binary.c?r1=1.15&r2=1.16)