AP_Scripting: add units and multipliers to logging example

libraries/AP_Scripting/examples/logging.lua

@@ -27,9 +27,13 @@ local function write_to_dataflash()
 
   -- care must be taken when selecting a name, must be less than four characters and not clash with an existing log type
   -- format characters specify the type of variable to be logged, see AP_Logger/README.md
+  -- https://github.com/ArduPilot/ardupilot/tree/master/libraries/AP_Logger
   -- not all format types are supported by scripting only: i, L, e, f, n, M, B, I, E, and N
   -- lua automatically adds a timestamp in micro seconds
-  logger.write('SCR','roll(deg),pitch(deg),yaw(deg)','fff',interesting_data[roll],interesting_data[pitch],interesting_data[yaw])
+  logger.write('SCR1','roll(deg),pitch(deg),yaw(deg)','fff',interesting_data[roll],interesting_data[pitch],interesting_data[yaw])
+
+  -- it is also possible to give units and multipliers
+  logger.write('SCR2','roll,pitch,yaw','fff','ddd','---',interesting_data[roll],interesting_data[pitch],interesting_data[yaw])
 
 end