"Cannot" vs "could not"

We use "cannot" and "could not" quite often in source code and error
messages:

$ grep .. 'cannot' | wc -l
13180

$ grep ... 'could not' | wc -l
12149

I noticed it by looking for errors about parsing in our /bin tools:

src/pl/plperl/ppport.h: die "cannot parse version '$ver'\n";
src/pl/plperl/ppport.h: die "cannot parse version '$ver'\n";
src/bin/pg_upgrade/server.c: pg_fatal("could not parse version file \"%s\"\n", cluster->pgdata);

This web page explains the difference well, i.e., "cannot" is present
tens, "could not" is past tense:

https://www.englishforums.com/English/CannotVsCouldNot/bhprvk/post.htm

Is there any sense that we should have more consistency in our message
wording?

--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EnterpriseDB https://enterprisedb.com

+ As you are, so once was I. As I am, so you will be. +
+ Ancient Roman grave inscription +