Beat Küng 210b5704a9 px4fmu_common rcS: fix MAVLINK_F test
fixes a 'test: syntax error' message on startup. There were two problems:
- the expansion of $MAVLINK_F lead to multiple arguments in the test
  when the variable contained spaces. Fixed with ""
- the x prevents interpretation as a unary expression, if $MAVLINK_F starts
  with a - character (in that case the expansion would be:
  if [ -r 1200 ... and nsh interprets - as unary expression)
2016-10-19 15:27:09 +02:00
..
2016-10-18 00:23:58 +02:00