Log Message:
-----------
Fix memory allocation for output of hstore type.
Per "maosen.zhang" <maosen(dot)zhang(at)alibaba-inc(dot)com> report.
Modified Files:
--------------
pgsql/contrib/hstore:
hstore_io.c (r1.9 -> r1.10)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/hstore/hstore_io.c?r1=1.9&r2=1.10)