pgsql: Fix pg_dump to add the required OPERATOR() decoration to

Log Message:
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Fix pg_dump to add the required OPERATOR() decoration to schema-qualified
operator names.  This is needed when dumping operator definitions that have
COMMUTATOR (or similar) links to operators in other schemas.
Apparently Daniel Whitter is the first person ever to try this :-(

Tags:
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REL8_1_STABLE

Modified Files:
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    pgsql/src/bin/pg_dump:
        pg_dump.c (r1.422.2.1 -> r1.422.2.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dump.c.diff?r1=1.422.2.1&r2=1.422.2.2)