Error: path/conflict/folder/. only after full upload - should be at start of upload

[szabgab]

As a first-time user of dbxcli I just ran a command like this:

dbxcli put bigfile.mp4 /Cloud_only/Videos/MP4/

After it spent ages uploading all the file I got an error Error: path/conflict/folder/.

Fair-enough, I should have specified the target filename as well writing dbxcli put bigfile.mp4 /Cloud_only/Videos/MP4/bigfile.mp4, but it would be much nicer if the error message came right at the beginning of the upload and not after I waited 20 minutes for the upload to finish.

[stevenh]

I noticed the same thing, for various issues.

[jaraco]

Fixing #152 (allowing for put to a directory) would make this issue less prominent.