correct a typo from messing up an emacs shortcut

Author: georgehines

dronekit/__init__.py

@@ -1909,7 +1909,7 @@ def home_location(self, pos):
         # Send MAVLink update.
         self.send_mavlink(self.message_factory.command_long_encode(
             0, 0,  # target system, target component
-            mavutil.mavlink.MAV_CMD_DO_SETH_OME,  # command
+            mavutil.mavlink.MAV_CMD_DO_SET_HOME,  # command
             0,  # confirmation
             2,  # param 1: 1 to use current position, 2 to use the entered values.
             0, 0, 0,  # params 2-4