[gtk+] tests/visuals: Squash a compiler warning

[Colin Walters <walters src gnome org>]

commit 626c08a847407e3aff6fd88a5b50db0643252080
Author: Colin Walters <walters verbum org>
Date:   Tue Jan 17 10:24:39 2012 -0500

    tests/visuals: Squash a compiler warning

 tests/visuals/visuals.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/tests/visuals/visuals.c b/tests/visuals/visuals.c
index df65b59..0a6caa3 100644
--- a/tests/visuals/visuals.c
+++ b/tests/visuals/visuals.c
@@ -66,8 +66,9 @@ main (int argc, char *argv[])
 
   gtk_init (&argc, &argv);
 
-  if (argc > 1)
-    filename = argv[1];
+  if (argc < 2)
+    return 1;
+  filename = argv[1];
 
   builder = gtk_builder_new ();
   gtk_builder_add_from_file (builder, filename, NULL);