Fix error message on short read of pg_control

Magnus Hagander <magnus@hagander.net>

Commit: 830e8e3609d003e320b963a7fa7c1432e10d8766
Author: Magnus Hagander <magnus@hagander.net>
Date: 2018-05-18T15:53:15Z
Releases: 9.6.10
Fix error message on short read of pg_control

Instead of saying "error: success", indicate that we got a working read
but it was too short.

Files

PathChange+/−
src/backend/access/transam/xlog.c modified +12 −4
src/common/controldata_utils.c modified +26 −9