Fix test failure with non-MULTIPLICITY Perl interpreters.

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

Commit: 2520cf8c2a0a1d679094dffbd99871884e620ed5
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2020-01-30T15:51:40Z
Releases: 13.0
Fix test failure with non-MULTIPLICITY Perl interpreters.

Per buildfarm.

Files