Upload do not work with some filenames

[gullradriel]

When testing updates from test-drive, it happened that I already had downloaded a ppfw.tar file, and I downloaded another one.

The new one had the name "portapack-mayhem_OCI.ppfw (1).tar"

It failed and produced the following log:

ch> fopen /FIRMWAREportapack-mayhem_OCI.ppfw (1).tar
usage: fopen <path>
ch> fseek 0
no open file
ch> fwb 100000
no open file

[jLynx]

This is due to the filename having a space in it. Currently the serial interface does not handle spaces. cc: @bernd-herzog

This needs to be fixed on the Mayhem side and once it is, this will automatically start working.

One thing we could do here in the meantime is warn the user if they are trying to upload something with a space in it.