basebackup_to_shell: Add some const qualifiers for consistency

Peter Eisentraut <peter@eisentraut.org>

Commit: 4cb65e10722164fd12c6b8d010a39ce0f92e71f9
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2022-12-13T09:39:44Z
Releases: 16.0
basebackup_to_shell: Add some const qualifiers for consistency

Files