coverity#1251596 Uncaught exception

Change-Id: I02b7abcd9ee17158ee063b2c9b6d0324eef70801

vcl/workben/outdevgrind.cxx

@@ -909,6 +909,8 @@ int GrindApp::Main()
 
 SAL_IMPLEMENT_MAIN()
 {
+    try
+    {
         bool bHelp = false;
 
         for( sal_uInt16 i = 0; i < Application::GetCommandLineParamCount(); i++ )
@@ -941,6 +943,17 @@ SAL_IMPLEMENT_MAIN()
         aGrindApp.Main();
 
         DeInitVCL();
+    }
+    catch (const css::uno::Exception& e)
+    {
+        SAL_WARN("vcl.app", "Fatal exception: " << e.Message);
+        return EXIT_FAILURE;
+    }
+    catch (const std::exception& e)
+    {
+        SAL_WARN("vcl.app", "Fatal exception: " << e.what());
+        return EXIT_FAILURE;
+    }
 
     return EXIT_SUCCESS;
 }