tls_generic_test sanitisation.

On Mon, 30 Jun 2014, Kristian Amlie wrote:
> 
> In libcfnet/tls_generic.c:
> 
> > @@ -38,6 +38,12 @@
> >  int CONNECTIONINFO_SSL_IDX = -1;
> > 
> > 
> > +const char *TLSErrorString(intmax_t errcode)
> > +{
> > +    const char *errmsg = ERR_reason_error_string((unsigned long) errcode);
> > +    return (errmsg != NULL) ? errmsg : "no error message";
> > +}
> 
> Why not use this everywhere?

I am only using it in TLS-specific parts. I wouldn't like any crypto-code 
calling this tls_generic.c function for reporting errors.