Bug#1023889: libimage-exiftool-perl: exiftool ignores GPSLongitudeRef option

[Phil Harvey]

Hi Andreas,

Yes, I considered your suggestions.  Adding a warning wasn't feasible.  I actually did update the documentation (the only place this is really documented is in FAQ 14):

https://exiftool.org/faq.html#Q14

But I was thinking that this wasn't sufficient, and could see this problem coming up again.  Plus, as you found out it isn't 100% backward compatible (although all of the pre-existing examples work fine because they all write the reference directions after the coordinates).

	- Phil