I should have just deleted the table, actually.

The only important info in it is that per RFC '=', '=\n', and '= \n' all ought to become '='.  But I don't think we should make that change, I think we should continue to turn those into ''.  So I consider the (current!) bwehavior of quoprimime to be the correct behavior.

I also gave the example of '= \n foo\n', to show that quopri and binascii aren't stripping trailing blanks, as Martin noted in the other issue.  They fold lines if they see '=\n', but not if they see '= \n', which is wrong per the (email!) RFC.  I'm not clear if it is wrong for non-email uses of quopric, I haven't tried to research that.