[evolution-data-server] Correct return value at pop3_folder_get_message_sync()

[Milan Crha <mcrha src gnome org>]

commit bac9cb72aadb42fe6696e8bb67785fd6308ea610
Author: Milan Crha <mcrha redhat com>
Date:   Mon Jun 30 12:19:39 2014 +0200

    Correct return value at pop3_folder_get_message_sync()

 camel/providers/pop3/camel-pop3-folder.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/camel/providers/pop3/camel-pop3-folder.c b/camel/providers/pop3/camel-pop3-folder.c
index 50fb1e1..55753e4 100644
--- a/camel/providers/pop3/camel-pop3-folder.c
+++ b/camel/providers/pop3/camel-pop3-folder.c
@@ -446,7 +446,7 @@ pop3_folder_get_message_sync (CamelFolder *folder,
                        error, CAMEL_SERVICE_ERROR,
                        CAMEL_SERVICE_ERROR_UNAVAILABLE,
                        _("You must be working online to complete this operation"));
-               return FALSE;
+               return NULL;
        }
 
        /* Sigh, most of the crap in this function is so that the cancel button