cobol: default iconv encoding (was: [PATCH] cobol: Address some iconv issues.)

[Simon Sobisch]

> Secondly, using Windows code page 1252 as a default seems overly
restrictive.
>-static const char standard_internal[] = "CP1252//";
>+static const char standard_internal[] =
>+#if __APPLE__
>+"ISO8859-1";
>+#else
>+"CP1252//";
>+#endif

I'd highly suggest to go with ISO8859-15 in general (=drop that 
conditional compile altogether), I think that's very widely available 
and covers the EUR sign as well.

Simon