[evolution-ews] Initialise filename to NULL in ews_remove_old_gal_file()

[David Woodhouse <dwmw2 src gnome org>]

commit 8e69c824415fc1b21f2e10fdb66fbfad7e998b4d
Author: David Woodhouse <David Woodhouse intel com>
Date:   Wed Sep 17 21:22:11 2014 +0100

    Initialise filename to NULL in ews_remove_old_gal_file()

 src/addressbook/e-book-backend-ews.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/addressbook/e-book-backend-ews.c b/src/addressbook/e-book-backend-ews.c
index 635b757..7e7c2b5 100644
--- a/src/addressbook/e-book-backend-ews.c
+++ b/src/addressbook/e-book-backend-ews.c
@@ -2398,7 +2398,7 @@ ews_remove_old_gal_file (EBookBackendEws *cbews,
                          GError **error)
 {
        EBookBackendEwsPrivate *priv = cbews->priv;
-       gchar *filename;
+       gchar *filename = NULL;
 
        if (!priv->summary)
                return FALSE;