pgsql: Print a MergeJoin's mergeNullsFirst array as bool, not int.

Print a MergeJoin's mergeNullsFirst array as bool, not int.

It's declared as being an array of bool, but it's printed
differently from the way bool and arrays of bool are handled
elsewhere.

Patch by Amit Kapila.  Anomaly noted independently by Amit Kapila
and KaiGai Kohei.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/4fe6f72bda7b4c3eb39560e3da50a093d833647d

Modified Files
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src/backend/nodes/outfuncs.c |    2 +-
1 file changed, 1 insertion(+), 1 deletion(-)