flac: Work on files with non latin1 characters

BUGS: 452594

plugins/decoder/flac/k3bflacdecoder.cpp

@@ -466,7 +466,7 @@ bool K3bFLACDecoderFactory::canDecode( const QUrl& url )
     }
 
     FLAC::Metadata::StreamInfo info = FLAC::Metadata::StreamInfo();
-    if (!FLAC::Metadata::get_streaminfo(url.toLocalFile().toLatin1(), info)) {
+    if (!FLAC::Metadata::get_streaminfo(url.toLocalFile().toLocal8Bit(), info)) {
         qDebug() << "(K3bFLACDecoder) " << url.toLocalFile() << ": get_streaminfo failed";
         return false;
     }