Bug#576081: apvlv: main window title is not always changed

[recoverym4n]

 Just a small update to the patch. 
Initial version didn't handle NULL filenames.

--- a/src/ApvlvDir.cpp	2010-03-31 18:20:22.669950694 +0400
+++ b/src/ApvlvDir.cpp	2010-03-31 18:53:15.161456572 +0400
@@ -356,6 +356,7 @@
       {
       case GDK_Return:
 	ApvlvWindow::currentWindow ()->setCore (ndoc);
+	if (name != NULL) gView->settitle (g_path_get_basename(name));
 	break;
 
       case 'o':
--- a/src/ApvlvView.cpp	2010-03-31 19:33:33.597456898 +0400
+++ b/src/ApvlvView.cpp	2010-03-31 19:33:07.205456290 +0400
@@ -544,6 +544,7 @@
       {
 	win->setCore (ndoc);
 	updatetabname ();
+	if (filename != NULL) settitle (filename);
       }
     g_free (abpath);