Provide name of conflicting repository

[berenddeboer]

Better error message in case of conflicts.

[berenddeboer]

BTW, the documentation led me to believe you can actually have the same package name in a repository twice. See "Using your own IRON packages locally". There an example is given where you have to select the repository. But the code does not seem the support this.

[jocelyn]

I would do

if l_has_conflict then
    if attached l_package_names.item (p.item.identifier) as l_earlier_package then
        print (" [ignoring this package as it is also listed in the " + l_earlier_package.repository.location_string + " repository!] ")
    else
        print (" [Conflict!] ")
    end

otherwise, the conflict may not be reported... even if it is likely that l_earlier_package is set.