GUD octave support

[Nick Roberts]

 > | The advantage of using something like:
 > | 
 > | ^Z^ZFILENAME:LINENO
 > | 
 > | is that it is unambiguous, as Octave would not normally output ^Z^Z and
 > | unlikely to change, so matching the regexp won't break.
 > 
 > OK, I'd consider a patch.  I think some other option name like
 > --gud-mode would make more sense than --fullname.

I don't wan't to quibble about the option name except to note that other
applications such as DDD, could use such output, and indeed already do in the
case of GDB.

-- 
Nick                                           http://www.inet.net.nz/~nickrob