[evolution] Fix possible use of uninitialized variable (from a fix for bug 605416)

[Milan Crha <mcrha src gnome org>]

commit 3480282e524f53eb1b870afd513e7fa050b22ae9
Author: Milan Crha <mcrha redhat com>
Date:   Mon Oct 24 15:39:09 2016 +0200

    Fix possible use of uninitialized variable (from a fix for bug 605416)

 src/composer/e-msg-composer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/composer/e-msg-composer.c b/src/composer/e-msg-composer.c
index ff3b703..8f096aa 100644
--- a/src/composer/e-msg-composer.c
+++ b/src/composer/e-msg-composer.c
@@ -5275,7 +5275,7 @@ e_msg_composer_get_message_draft_finish (EMsgComposer *composer,
 CamelInternetAddress *
 e_msg_composer_get_from (EMsgComposer *composer)
 {
-       CamelInternetAddress *inet_address;
+       CamelInternetAddress *inet_address = NULL;
        ESourceMailIdentity *mail_identity;
        EComposerHeaderTable *table;
        ESource *source;