pgsql: This patch fixes a bug in the error message emitted by pg_restore

Log Message:
-----------
This patch fixes a bug in the error message emitted by pg_restore on an
incorrect -F argument: write_msg() expects its first parameter to be a
"module name", not the format string.

Tags:
----
REL8_0_STABLE

Modified Files:
--------------
    pgsql/src/bin/pg_dump:
        pg_restore.c (r1.68 -> r1.68.4.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_restore.c.diff?r1=1.68&r2=1.68.4.1)