capitalize the application name in GetAppDisplayName() by default; this results in logging message appearance consistent with wx 2.8 and generally looks better

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54916 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/app.h

@@ -131,8 +131,10 @@ public:
         // so the app name could be myapp while display name could be "My App"
     wxString GetAppDisplayName() const
     {
-        return m_appDisplayName.empty() ? GetAppName() : m_appDisplayName;
+        return m_appDisplayName.empty() ? GetAppName().Capitalize()
+                                        : m_appDisplayName;
     }
+
     void SetAppDisplayName(const wxString& name) { m_appDisplayName = name; }
 
         // set/get the app class name