pgsql: Fix pg_dump on win32 to properly dump files larger than 2Gb when

Log Message:
-----------
Fix pg_dump on win32 to properly dump files larger than 2Gb when using
binary dump formats.

Tags:
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REL8_2_STABLE

Modified Files:
--------------
pgsql/src/bin/pg_dump:
pg_backup_archiver.c (r1.138 -> r1.138.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_backup_archiver.c.diff?r1=1.138&r2=1.138.2.1)
pg_backup_archiver.h (r1.73 -> r1.73.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_backup_archiver.h.diff?r1=1.73&r2=1.73.2.1)
pg_backup_custom.c (r1.36 -> r1.36.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_backup_custom.c.diff?r1=1.36&r2=1.36.2.1)
pg_backup_files.c (r1.29 -> r1.29.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_backup_files.c.diff?r1=1.29&r2=1.29.2.1)
pg_backup_tar.c (r1.56 -> r1.56.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_backup_tar.c.diff?r1=1.56&r2=1.56.2.1)
pg_dump.h (r1.130 -> r1.130.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dump.h.diff?r1=1.130&r2=1.130.2.1)