[COMMITTERS] pgsql: Use double quotes for quoting xml attributes.

[Peter Eisentraut]

Log Message:
-----------
Use double quotes for quoting xml attributes.

Modified Files:
--------------
    pgsql/src/backend/utils/adt:
        xml.c (r1.59 -> r1.60)
        
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/xml.c?r1=1.59&r2=1.60)

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