Fix \n shenanigans in command output.

src/commands/Command.cpp

@@ -149,7 +149,8 @@ bool ApplyAndSendResponse::Apply()
       bool bResult = mCommand->Apply(*( mCtx.get()));
       return bResult; }
    );
-   wxString response = GetName();
+   wxString response = wxT( "\n" );
+   response += GetName();
    // These three strings are deliberately not localised.
    // They are used in script responses and always happen in English.
    response += wxT(" finished: ");

src/commands/CommandTargets.h

@@ -218,17 +218,25 @@ class ResponseQueueTarget final : public CommandMessageTarget
 {
 private:
    ResponseQueue &mResponseQueue;
+   wxString mBuffer;
 public:
    ResponseQueueTarget(ResponseQueue &responseQueue)
-      : mResponseQueue(responseQueue)
+      : mResponseQueue(responseQueue),
+       mBuffer( wxEmptyString )
    { }
    virtual ~ResponseQueueTarget()
    {
+      if( mBuffer.StartsWith("\n" ) )
+         mBuffer = mBuffer.Mid( 1 );
+      mResponseQueue.AddResponse( mBuffer  );
       mResponseQueue.AddResponse(wxString(wxT("\n")));
    }
    void Update(const wxString &message) override
    {
-      mResponseQueue.AddResponse(message);
+      mBuffer += message;
+#if 0
+         mResponseQueue.AddResponse(message);
+#endif
    }
 };