multiple default values not possible it seems

Multiple default values are not supported it seems. If you for instance 
specify

option "weights" w  "some text" typestr="FLOAT,FLOAT" float 
default="2.0,2.0" optional multiple(2)

I get "invalid default value".

I would be nice if that could be supported. If not I would suggest 
adding some more documentation, for instance like
the attached patch.

cheers,
Erik Sjölund


esjolund@csbl05:/tmp$ ~/gengetopt/inst/bin/gengetopt -V
GNU gengetopt 2.22.2
Copyright (C) 1999-2009  Free Software Foundation Inc.
This program comes with ABSOLUTELY NO WARRANTY; for details
please see the file 'COPYING' supplied with the source code.
This is free software, and you are welcome to redistribute it
under certain conditions; again, see 'COPYING' for details.
This program is released under the GNU General Public License.
esjolund@csbl05:/tmp$ cat a.ggo
package "reconcile"
version "0.9.0"
purpose "What this program does"
option "weights" w  "some text" typestr="FLOAT,FLOAT" float 
default="2.0,2.0" optional multiple(2)

esjolund@csbl05:/tmp$ ~/gengetopt/inst/bin/gengetopt -i a.ggo
a.ggo:4: invalid default value

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diff -ru old/gengetopt-2.22.3/doc/gengetopt.texinfo new/gengetopt-2.22.3/doc/gengetopt.texinfo
--- old/gengetopt-2.22.3/doc/gengetopt.texinfo	2009-09-30 18:56:16.000000000 +0200
+++ new/gengetopt-2.22.3/doc/gengetopt.texinfo	2009-12-04 10:20:29.000000000 +0100
@@ -504,8 +504,10 @@
 @cindex default 
 @item default 
 
-an optional default value for the option.  The value must always be
-specified as a double quoted string.
+an optional default value for the option. The value must always be
+specified as a double quoted string. It is possible to combine this 
+flag with the @code{multiple} flag but only by giving a single default 
+value. It is not possible to specify a list of default values.
 
 @cindex dependon
 @item dependon