Erroneous output with multiple directory arguments

[elehtoranta]

Input of multiple directory arguments and no non-directory arguments (e.g. regular files, symlinks, etc.) yields an extra newline to the start of the input. This might require either:

1. Simply reordering the output listing and adding a condition to stop printing newlines at the last element, whatever it may be, or (preferably)
2. Refactoring the output formatting functionality to a more modular approach, as the formatting done for list items is spread out to multiple functions as of now.
   If option 2. is followed, this warrants a more invasive refactoring of the list_* functions altogether. (See issue: TBD)