fix style trailing whitespace

Author: PannapatC

examples/rtk_base_ublox.py

@@ -136,8 +136,8 @@ async def send_rtcm(drone):
                 if rtcm_correction_data is None:
                     continue
 
-                # Convert the rtcm data to a base64, 
-                # In MAVSDK v3 the rtcm data is expected 
+                # Convert the rtcm data to a base64,
+                # In MAVSDK v3 the rtcm data is expected
                 # to be base64 encoded string .
                 base64_rtcm_data = base64.b64encode(
                     rtcm_correction_data).decode('utf-8')