Setting single location parameter clears other location params

[ChrisRomp]

Perhaps this is a documentation bug if the behavior is intended, but if you pass a location parameter such as --setlat and do not include longitude or altitude, the unspecified values are cleared. In order to set a position via the CLI, it appears to be necessary to specify --setlat, --setlon, and --setalt args together.

Option 1: The CLI should only set/unset values that are specified.

Option 2: Update the CLI documentation to specify that all three parameters should be set together.

[ianmcorvidae]

Yeah, probably the documentation should be updated to specify that if any of lat/lon/alt aren't included they'll be set to 0. There's not really a very clean way to only update one value at a time.