[gnome-builder] snippets: don't leak dup'd string

[Christian Hergert <chergert src gnome org>]

commit fe0497ac06d220758b035f87d4641b8e0b90cb30
Author: Christian Hergert <chergert redhat com>
Date:   Thu Oct 13 19:14:13 2016 -0700

    snippets: don't leak dup'd string

 libide/snippets/ide-source-snippet-context.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libide/snippets/ide-source-snippet-context.c b/libide/snippets/ide-source-snippet-context.c
index a81c1ca..be1e742 100644
--- a/libide/snippets/ide-source-snippet-context.c
+++ b/libide/snippets/ide-source-snippet-context.c
@@ -528,7 +528,7 @@ ide_source_snippet_context_expand (IdeSourceSnippetContext *context,
             {
               if (strchr (input, '|'))
                 {
-                  gchar *lkey;
+                  g_autofree gchar *lkey = NULL;
 
                   lkey = g_strndup (input, strchr (input, '|') - input);
                   expand = ide_source_snippet_context_get_variable (context, lkey);