Make sure defaultServerName is initialised even on errors
diff --git a/vncviewer/vncviewer.cxx b/vncviewer/vncviewer.cxx
index 0b2de53..a60f000 100644
--- a/vncviewer/vncviewer.cxx
+++ b/vncviewer/vncviewer.cxx
@@ -425,6 +425,7 @@
   try {
     defaultServerName = loadViewerParameters(NULL);
   } catch (rfb::Exception& e) {
+    defaultServerName = "";
     fl_alert("%s", e.str());
   }