#101 rox-filer does not eject/umount in paths with spaces

[Alister Hood]

As described in a Debian report:

"Rox does not properly escape spaces in passing commands to external
mount/umount/eject commands specified in Options/Action Windows/Mount
commands.

Parameters passed on should be either properly escaped or quoted. As it
is safe to assume only one dir is passed on to either command due to the
gui's limitations of Eject menu items probably quoting is the easiest to
solve the issue."

Note that mount points with spaces in them have most likely not been created manually by the user - they have probably been created by an automounter creating mount points based on the disk label when it exists.