[gnome-builder] xml-pack: fix typo

[Christian Hergert <chergert src gnome org>]

commit 28ecfcf4bd6d3bcd674cca499316e25b3e141ee9
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jan 12 17:37:14 2018 -0800

    xml-pack: fix typo

 src/plugins/xml-pack/ide-xml-symbol-node.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/plugins/xml-pack/ide-xml-symbol-node.c b/src/plugins/xml-pack/ide-xml-symbol-node.c
index 0a336dc98..7ea678ee4 100644
--- a/src/plugins/xml-pack/ide-xml-symbol-node.c
+++ b/src/plugins/xml-pack/ide-xml-symbol-node.c
@@ -166,7 +166,7 @@ ide_xml_symbol_node_new (const gchar   *name,
                        NULL);
 
   if (dzl_str_empty0 (element_name))
-    self->element_name = g_strdup ("unknow");
+    self->element_name = g_strdup ("unknown");
   else
     self->element_name = g_strdup (element_name);