Fix two MSVC compile warnings.

src/BatchCommands.cpp

@@ -687,6 +687,8 @@ bool MacroCommands::ApplyEffectCommand(
    const wxString & command, const wxString & params,
    const CommandContext & Context)
 {
+   (void*)&command;//compiler food.
+
    //Possibly end processing here, if in batch-debug
    if( ReportAndSkip(friendlyCommand, params))
       return true;