Log Message:
-----------
Fix pgstat_heap() to not be broken by syncscans starting from a block
higher than zero. Same problem as just detected in CREATE INDEX
CONCURRENTLY.
Modified Files:
--------------
pgsql/contrib/pgstattuple:
pgstattuple.c (r1.31 -> r1.32)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/pgstattuple/pgstattuple.c?r1=1.31&r2=1.32)