Log Message:
-----------
Remove another unsafe use of random data as a format string.
Modified Files:
--------------
pgsql/contrib/pg_upgrade:
controldata.c (r1.3 -> r1.4)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/pg_upgrade/controldata.c?r1=1.3&r2=1.4)