Type casting inconsistency

[ManSoSec]

libredwg/src/decode.c

Line 2552 in 785df5f

while ((int)(hdl_dat.byte - startpos) < section_size)

libredwg/src/decode_r2007.c

Line 1594 in 785df5f

while (hdl_dat.byte - startpos < section_size)

Is a type casting (int) missed?

[rurban]

We should rather zero-extend to long both sides here, to avoid overflows. Thanks. Done in 631bbac