Resolves: #i61854# Basic: Default title of Msgboxes should be changed

Found by: berend dot cornelius at germany dot sun dot com
Patch by: Pathangi Janardhanan Jatinshravan <JATINSHR001 at e dot ntu dot edu dot sg>
Review by: Damjan Jovanovic

(cherry picked from commit 519770a2)

Change-Id: I61c9eacd285c8335925f1569b64bb2d600caf545

basic/source/runtime/methods.cxx

@@ -4625,7 +4625,7 @@ RTLFUNC(MsgBox)
     }
     else
     {
-        aTitle = Application::GetAppName();
+        aTitle = Application::GetDisplayName();
     }
 
     nType &= (16+32+64);