[gnome-builder] langserv: fix ownership transfer of error

[Christian Hergert <chergert src gnome org>]

commit 83eea5cd80a211ce6c61ea5ce9889aea3e9c3de4
Author: Christian Hergert <chergert redhat com>
Date:   Mon Oct 24 03:50:29 2016 -0700

    langserv: fix ownership transfer of error

 libide/langserv/ide-langserv-client.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libide/langserv/ide-langserv-client.c b/libide/langserv/ide-langserv-client.c
index f4d7e25..d9fb7d2 100644
--- a/libide/langserv/ide-langserv-client.c
+++ b/libide/langserv/ide-langserv-client.c
@@ -879,7 +879,7 @@ ide_langserv_client_call_cb (GObject      *object,
 
   if (!jsonrpc_client_call_finish (client, result, &return_value, &error))
     {
-      g_task_return_error (task, error);
+      g_task_return_error (task, g_steal_pointer (&error));
       return;
     }