when there's a conflict that blocks resolution, librarian-puppet's output without --verbose is useless

[lelutin]

I've been having issues today with librarian-puppet not being able to resolve some perceived version conflict. When I was running librarian-puppet at first I was doing so without the --verbose flag and got this output:

 $ librarian-puppet install 
Could not resolve the dependencies.

The above is totally useless and I was forced to rerun the entire dependency resolution again with librarian-puppet install --verbose in order to see what was happening.

I would argue that the error output should include the specific lines of text telling users what version conflicts were found, even though the whole --verbose output is not shown.