confusing error message if output dir doesn't exist
Brought to you by:
nilsjuergens,
robos
If the -o specified output directory does not exist, one gets the error message:
[Error] Not enough free space on the destination dir. Please choose another one or -f
[Error] or dirs behind -1, -2 ... are NOT allowed with -m!
There was enough space so this error wasn't completely true. A separate check would be nice. Either create the directory automatically or give appropriate error message.