[libglade] Show the function name that is not found in warning message

[Tor Lillqvist <tml src gnome org>]

commit 164eb26c87fb1fb333c7de1aeeeae103bf338f21
Author: Tor Lillqvist <tml iki fi>
Date:   Thu Nov 12 13:17:28 2009 +0200

    Show the function name that is not found in warning message
    
    Makes the warning message much more useful. Use similar format as in
    the warning message in autoconnect_foreach().

 glade/glade-xml.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/glade/glade-xml.c b/glade/glade-xml.c
index d90fe6e..dda63c8 100644
--- a/glade/glade-xml.c
+++ b/glade/glade-xml.c
@@ -966,7 +966,7 @@ default_custom_handler(GladeXML *xml, gchar *func_name, gchar *name,
     allsymbols = g_module_open(NULL, 0);
     if (g_module_symbol(allsymbols, func_name, (gpointer)&func))
 	return (* func)(name, string1, string2, int1, int2);
-    g_warning("could not find widget creation function");
+    g_warning("could not find widget creation function '%s'.", func_name);
     return NULL;
 }