Index: src/DeltaShell/DeltaShell.Gui/Forms/OptionsDialog/GeneralOptionsControl.cs
===================================================================
diff -u -r5fc71a385897af92ccb092f2f969b5709afab85a -r4c09f28891546d714fa6a15d36b70d8a6b9a4aa7
--- src/DeltaShell/DeltaShell.Gui/Forms/OptionsDialog/GeneralOptionsControl.cs	(.../GeneralOptionsControl.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
+++ src/DeltaShell/DeltaShell.Gui/Forms/OptionsDialog/GeneralOptionsControl.cs	(.../GeneralOptionsControl.cs)	(revision 4c09f28891546d714fa6a15d36b70d8a6b9a4aa7)
@@ -118,7 +118,7 @@
 
         private string GetRealNumberFormatFromControls()
         {
-            string format = "";
+            string format;
             var numDecimals = (int) upDownNumberOfDecimals.Value;
 
             if (radioButtonCompactNotation.Checked)