Ddbg 0.0.2.3 alpha release

[Walter Bright]

Jascha Wetzel wrote:
> he probably didn't. "Error: Empty CodeView data" is what happens in this
> case.
> debugging executables without symbols isn't supported, yet.

Most programmers don't know what Codeview is (since it's a very old 
format). How about changing the message to:

Error: No symbolic debug info present, try compiling with -g

?