Comment 2 for bug 1661951

ok, file list from EiskaltDC++ 2.2.9.

Can we change error message to something like this:

ADC protocol violation, file or directory name not unique: Failed to load the file list USER_NAME: The directory Music\Library\E\DIR_NAME\ contains items with duplicate names (DIR_NAME, FILE_NAME)

this will more clear to user, because user not know all ADC protocol restrictions.