Log Message:
-----------
Fix compiler warnings on 64-bit boxes: difference between
pointers are int64, but warnings are emitted for position info in
error messages in parser, so, just cast it to int32
Modified Files:
--------------
pgsql/contrib/hstore:
hstore_io.c (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/hstore/hstore_io.c.diff?r1=1.1&r2=1.2)