German comment translated to English

Change-Id: I8f4686e89a068a4392cff013de31f429be88e2b9
Reviewed-on: https://gerrit.libreoffice.org/2423Reviewed-by: Thomas Arnhold <thomas@arnhold.org>
Tested-by: Thomas Arnhold <thomas@arnhold.org>

dbaccess/source/ui/querydesign/JoinTableView.cxx

@@ -1078,7 +1078,7 @@ void OJoinTableView::ClearAll()
 sal_Bool OJoinTableView::ScrollWhileDragging()
 {
     DBG_CHKTHIS(OJoinTableView,NULL);
-    OSL_ENSURE(m_pDragWin != NULL, "OJoinTableView::ScrollWhileDragging darf nur waehrend Dragging eines Fensters aufgerufen werden !");
+    OSL_ENSURE(m_pDragWin != NULL, "OJoinTableView::ScrollWhileDragging must not be called when a window is being dragged !");
 
     // kill the timer
     if (m_aDragScrollTimer.IsActive())