[gnome-online-accounts] ewsclient: Silence -Wsign-compare

[Debarshi Ray <debarshir src gnome org>]

commit 80617d2117aa37710a3a1a9bcca4a4e54c441a43
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Nov 2 14:16:07 2017 +0100

    ewsclient: Silence -Wsign-compare

 src/goabackend/goaewsclient.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/goabackend/goaewsclient.c b/src/goabackend/goaewsclient.c
index 265775f..d762d07 100644
--- a/src/goabackend/goaewsclient.c
+++ b/src/goabackend/goaewsclient.c
@@ -185,8 +185,8 @@ ews_client_autodiscover_response_cb (SoupSession *session, SoupMessage *msg, gpo
   GError *error = NULL;
   AutodiscoverData *data = user_data;
   gboolean op_res = FALSE;
+  guint idx;
   guint status;
-  gint idx;
   gsize size;
   xmlDoc *doc;
   xmlNode *node;