[help-gengetopt] show-config may print default values

[Papp Gyozo (VBuster)]

Hi everyone out there,

I have just a quick but probably add to gengetopt now. Now we have a shiny 
_dump() function to print all *given* options to an output stream.  Now I come 
up with the idea that this funciton be able to print default values as well if 
it is required.

The reason behind that is my application fills some of the default values at 
runtime which could not be compiled into the source like the actual value of 
TEMP environmental variable. (These default values can be overriden by the 
user, of course) This way I, and what would be more important, the users as 
well could see easily what went wrong.

--
Papp, Gyozo
Virusbuster Kft