coverity#1215393 Uncaught exception

Change-Id: I96575d843fd982866c89000bb4426bd5e11c56d1

svx/workben/pixelctl.cxx

@@ -46,6 +46,8 @@ void Main();
 
 SAL_IMPLEMENT_MAIN()
 {
+    try
+    {
         tools::extendApplicationEnvironment();
 
         // create the global service-manager
@@ -60,6 +62,12 @@ SAL_IMPLEMENT_MAIN()
         InitVCL();
         ::Main();
         DeInitVCL();
+    }
+    catch (const Exception& e)
+    {
+        SAL_WARN("vcl.app", "Fatal exception: " << e.Message);
+        return 1;
+    }
 
     return 0;
 }