Adjust ecpg expected-results files for commit 7640f9312.

Tom Lane <tgl@sss.pgh.pa.us>

Commit: ec66ec8b21d3d779047313ac214fba7bcd29a97c
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2019-05-31T16:47:19Z
Releases: 12.0
Adjust ecpg expected-results files for commit 7640f9312.

Mea culpa for not rechecking check-world at the last step :-(
Per buildfarm.

Files