Extend the description of the MI command --data-disassemble.
Specifically, expand the description of the 'opcodes' field to explain
how the bytes are formatted.
The text disassembly for this @samp{address}.
@item opcodes
-This field is only present for modes 2, 3 and 5. This contains the raw opcode
-bytes for the @samp{inst} field.
+This field is only present for modes 2, 3 and 5. This contains the
+raw opcode bytes for the @samp{inst} field. The bytes are formatted
+as single bytes, in hex, in ascending address order, with a single
+space between each byte.
@end table