Data STructure subfields that are VARCHAR are 2-bytes shorter than they should be

[bobcozzi]

I have this structure in RPG IV fixed format:

     D http_hdr_t      DS                  Qualified Inz Template
     D  elems                         5I 0
     D  name                        255A   Varying
     D  value                       255A   Varying

     D hdr             DS                  LikeDS(http_hdr_t) Based(pHdr)
     D header          DS                  LikeDS(http_hdr_t) Inz

When I debug the symbols table and look at the subfields for struct HDR, I see:
NAME 253 VARYING
They should be:
NAME 255 VARYING

And the actual length should be 257 since VARYING adds 2 bytes.
I am checking for VARYING so 257 isn't strictly needed, but the length should be corrected to 255 in these cases.