Copter: minor format fix to sensors.cpp

ArduCopter/sensors.cpp

@@ -40,7 +40,7 @@ void Copter::read_rangefinder(void)
     struct {
         RangeFinderState &state;
         enum Rotation orientation;
-    } rngfnd[2] = { {rangefinder_state, ROTATION_PITCH_270}, {rangefinder_up_state, ROTATION_PITCH_90}};
+    } rngfnd[2] = {{rangefinder_state, ROTATION_PITCH_270}, {rangefinder_up_state, ROTATION_PITCH_90}};
 
     for (uint8_t i=0; i < ARRAY_SIZE(rngfnd); i++) {
         // local variables to make accessing simpler