evdev.c: fix printing of struct ff_envelope.fade_level
evdev.c: fix printing of struct ff_envelope.fade_level

* evdev.c (decode_envelope): Print struct ff_envelope.fade_level
using #x format.

Saruta/strace,Saruta/strace,cuviper/strace,Saruta/strace,Saruta/strace,Saruta/strace,cuviper/strace,cuviper/strace,cuviper/strace,cuviper/strace