bugfix: make sure that even unnamed parts at the end can be read

* seek does not fail, even if the pointer is beyond the end of the file

laymanshex.go

@@ -406,7 +406,12 @@ func getValues(descr fileDescription, binpath string) map[string]string {
 	optPanic("failed to open binary", err)
 	for i, part := range descr.parts {
 		if part.name == "" {
-			_, err = f.Seek(part.handling.bytes, 1)
+			if i == len(descr.parts)-1 {
+				throwaway := make([]byte, part.handling.bytes)
+				_, err = f.Read(throwaway)
+			} else {
+				_, err = f.Seek(part.handling.bytes, 1)
+			}
 			optPanic(seekErr(i, part.name, err), err)
 		} else {
 			vals[part.name] = part.handling.readFrom(f, descr.byteOrder)