pgsql: Fix aclexplode to not explode on a zero-entry ACL array.

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Fix aclexplode to not explode on a zero-entry ACL array.
Date: 2010-01-12 02:39:22
Message-ID: 20100112023922.9557C7541B9@cvs.postgresql.org
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Log Message:
-----------
Fix aclexplode to not explode on a zero-entry ACL array.
(An Assert is no substitute for thinking clearly :-()

Minor style kibitzing too.

Per report from Robert Treat.

Modified Files:
--------------
pgsql/src/backend/utils/adt:
acl.c (r1.154 -> r1.155)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/acl.c?r1=1.154&r2=1.155)

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