Log Message:
-----------
Remove xmlCleanupParser calls from contrib/xml2.

These are unnecessary and probably dangerous.  I don't see any immediate
risk situations in the core XML support or contrib/xml2 itself, but there
could be issues with external uses of libxml2, and in any case it's an
accident waiting to happen.

Modified Files:
--------------
    pgsql/contrib/xml2:
        xpath.c (r1.27 -> r1.28)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/xml2/xpath.c?r1=1.27&r2=1.28)
        xslt_proc.c (r1.17 -> r1.18)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/xml2/xslt_proc.c?r1=1.17&r2=1.18)

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Next:	From: Tom Lane	Date: 2010-03-01 05:16:40
	Subject: pgsql: Remove xmlCleanupParser calls from contrib/xml2.
Previous:	From: Tom Lane	Date: 2010-03-01 03:41:29
	Subject: pgsql: Back-patch today's memory management fixups in contrib/xml2.