[WT-support] Heading not shown for OM prefixes in the band map

[sm5ajv at qrq.se]

It looks like the heading is not shown in the band map for
OM when selecting DATA FILES / Country Files = CTY_WT_MOD.DAT
Both are in exactly 180 degrees from my position (JO89LW) and are
shown correctly in Check Multiplier window.

It looks that the problem is occuring when Heading is 180 and
not for other headings. Maybe this is a minor bug?

73
Ingo SM5AJV / SE5E