Ascii encoding failure of field with single dash '-'

[anisse]

I'm not sure if this is a bug or a byproduct of FRU encoding, but the following command fails with Failed to encode custom field. Memory allocation or field length problem.:

frugen --ascii --chassis-custom - out.fru

Using an empty field "", two, or three dashes works.

[matsievskiysv]

The same problem occurs with any data field of type text and size 1 because of this line