Log Message:-----------Use ReadDir() not readdir() so as to have some modicum of error checking.
Modified Files:-------------- pgsql/src/backend/utils/adt: dbsize.c (r1.2 -> r1.3) (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/dbsize.c.diff?r1=1.2&r2=1.3)
