Add ending slash
Adds an ending slash to the given path, makes a difference
between windows and unix paths (keeps orginal slashes)
The normalize_path function is also a good way for doing this...
Sorry folks, comments have been deactivated for now due to the large amount of spam.
Please try to post your questions or problems on a related programming board, a suitable mailing list, a programming chat-room,
or use a QA website like stackoverflow because I'm usually too busy to answer any mails related
to my code snippets. Therefore please just mail me if you found a serious bug... Thank you!