Dear Fujii-san,
> Thanks for updating the patch! LGTM.
>
> I've attached an updated version with some cosmetic changes and revised
> commit log messages. I also created a patch for REL_17_STABLE.
Thanks for updating the patch. One minor point: command_like() might be
better in below if we assume the command returns 0 and no stderr. But
not a strong opinion.
```
+command_checks_all([ 'pg_walsummary', '-q', @summaries ],
+ 0, [qr/\A\z/], [qr/\A\z/], "-q suppresses all output");
```
Best regards,
Hayato Kuroda
FUJITSU LIMITED