Warning when iio-sensor-proxy exits too quickly
When plugging in a PlayStation 4 joypad, one would see this warning appear in the logs:
JS ERROR: TypeError: this._sensorProxy is null
_sensorProxyAppeared/this._sensorProxy<@resource:///org/gnome/shell/misc/systemActions.js:217:17
_makeProxyWrapper/</<@resource:///org/gnome/gjs/modules/overrides/Gio.js:243:21
iio-sensor-proxy doesn't handle sensors inside joypads, so would exit pretty quickly. This should probably be made quiet.