New CLI is too tolerant of strange file names

[dbaston]

What is the bug?

I am using a minimal build that does not have the Postgres driver enabled. Running the following:

gdal vector convert /tmp/out.shp "PG:host=172.17.0.2 user=postgres dbname=postgres"

Creates a directory called PG:host=172.17.0.2 user=postgres dbname=postgres to which it writes a file called out.shp. I guess this is longstanding behavior for ogr2ogr but I think the new CLI is an opportunity to break it.

I think a reasonable behavior would be "Error: could not identify a driver for output name "PG:host=172.17.0.2 user=postgres dbname=postgres"`. Recognizing the driver prefix and saying "Driver "Postgres" is not enabled" would be a bonus, but not necessary.

Steps to reproduce the issue

Above

Versions and provenance

master

Additional context

No response