Format and comment fw, mc, vtol, and ugv vehicle apps and default startup scripts.

ROMFS/px4fmu_common/init.d/rc.mc_defaults

@@ -1,20 +1,26 @@
 #!nsh
+#
+# Multicopter default parameters.
+#
+# NOTE: Script variables are declared/initialized/unset in the rcS script.
+#
 
 set VEHICLE_TYPE mc
 
 if [ $AUTOCNF == yes ]
 then
 	param set NAV_ACC_RAD 2.0
+
 	param set RTL_RETURN_ALT 30.0
 	param set RTL_DESCEND_ALT 10.0
-	param set PWM_MIN 1075
-	param set PWM_MAX 1950
-	param set PWM_RATE 400
-
 	param set RTL_LAND_DELAY 0
+
+	param set PWM_MAX 1950
+	param set PWM_MIN 1075
+	param set PWM_RATE 400
 fi
 
-# This is the gimbal pass mixer
+# This is the gimbal pass mixer.
 set MIXER_AUX pass
 set PWM_AUX_RATE 50
 set PWM_AUX_OUT 1234