hid-recorder: fix segfault with hidraw recordings

res is an int, should use %d, not %s

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
hid-recorder: revert listening to the hidraw node by default

Multitouch devices have a bug while reading the hid debugfs node: we miss
a lot of events. Relying on a command parameter to use hid debugfs in
cases hidraw is not helping us.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>