[gtk+] gtk-demo: don't try to add tabs for empty filenames

[Cosimo Cecchi <cosimoc src gnome org>]

commit 46f967dd7afa6c1c2b1174a562213d64d6b56c5d
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Wed May 30 12:55:51 2012 -0400

    gtk-demo: don't try to add tabs for empty filenames

 demos/gtk-demo/main.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/demos/gtk-demo/main.c b/demos/gtk-demo/main.c
index 95e841e..2ac7217 100644
--- a/demos/gtk-demo/main.c
+++ b/demos/gtk-demo/main.c
@@ -573,8 +573,10 @@ load_file (const gchar *filename)
 
   names = g_strsplit (filename, " ", -1);
 
-  for (i = 1; names[i]; i++)
-    add_data_tab (names[i]);
+  for (i = 1; names[i]; i++) {
+    if (strlen (names[i]) > 0)
+      add_data_tab (names[i]);
+  }
 
   if (current_file && !strcmp (current_file, names[0]))
     {