Thread: pgsql: Fix bug in KnownAssignedXidsMany().

Log Message:
-----------
Fix bug in KnownAssignedXidsMany(). I saw this when looking at the
assertion failure reported by Erik Rijkers, but this alone doesn't explain
the failure.

Modified Files:
--------------
    pgsql/src/backend/storage/ipc:
        procarray.c (r1.60 -> r1.61)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/storage/ipc/procarray.c?r1=1.60&r2=1.61)