[glib/new-gsettings] Do not crash when converting a gconf schema with no default value

[Vincent Untz <vuntz src gnome org>]

commit fd619f24e823934a92b5a9a771e7ec86015e0926
Author: Vincent Untz <vuntz gnome org>
Date:   Fri Apr 16 21:59:55 2010 -0400

    Do not crash when converting a gconf schema with no default value

 gio/gsettings-schema-convert |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/gio/gsettings-schema-convert b/gio/gsettings-schema-convert
index 0fd8149..079186b 100755
--- a/gio/gsettings-schema-convert
+++ b/gio/gsettings-schema-convert
@@ -325,8 +325,11 @@ class GConfSchema:
             self.default = locale_node.find('default').text
             self.localized = True
         except:
-            self.default = node.find('default').text
-            self.localized = False
+            try:
+                self.default = node.find('default').text
+                self.localized = False
+            except:
+                raise GSettingsSchemaConvertException('No default value for \'%s\'. GSettings schemas require one default value.' % self.applyto or self.key)
         self.typed_default = None
 
         self.short = self._get_value_with_locale(node, locale_node, 'short')