Update cache information after translation change.

Since a translation change can affect the locale the locale-dependent strings
need to be refreshed explicitly.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30634 a1c6a512-1295-4272-9138-f99709370657

rbutil/rbutilqt/configure.cpp

@@ -903,6 +903,7 @@ void Config::changeEvent(QEvent *e)
 {
     if(e->type() == QEvent::LanguageChange) {
         ui.retranslateUi(this);
+        updateCacheInfo(ui.cachePath->text());
     } else {
         QWidget::changeEvent(e);
     }