WSPR Callsign with one char prefix failed.

[pe0fko]

Hello,
I did have some trouble with a one char prefix in the wspr callsign (F/PE0FKO), it was not received by the wspr systems.
Did check the code for the JTEncode::wspr_encode() function and found the problem in JTEncode::wspr_bit_packing(). There, in the function line 1000, the 3 and 2 char prefix is handled, only the one char prefix is not!
I fixed the code with some extra if statement for the 1 char prefix and it works (for me ;-)), maybe you update the repo for that.
73, Fred, pe0fko