Restored 0.27.2 "toString()" behaviour of Exifdatum.value().toString() for CommentValue.

src/exif.cpp

@@ -226,8 +226,16 @@ namespace Exiv2 {
         if ( ti ) {
             fct = ti->printFct_;
             if ( ti->typeId_ == comment ) {
-              os << value().toString();
+                fct=NULL;
-              fct=NULL;
+                const Exiv2::CommentValue* cv = dynamic_cast<const Exiv2::CommentValue*>(&value());
+                Exiv2::CommentValue::CharsetId csId = cv->charsetId();
+                if ( csId != CommentValue::undefined ) {
+                    os << "charset=" << CommentValue::CharsetInfo::name(csId) << " ";
+                }
+                os << cv->comment();
+#if 0
+                os << "|| value().toString() = " << value().toString();
+#endif
             }
         }
         if ( fct ) fct(os, value(), pMetadata);

src/value.cpp

@@ -548,10 +548,6 @@ namespace Exiv2 {
 
     std::ostream& CommentValue::write(std::ostream& os) const
     {
-        CharsetId csId = charsetId();
-        if (csId != undefined) {
-            os << "charset=" << CharsetInfo::name(csId) << " ";
-        }
         return os << comment();
     }