[evolution] mail_session_add_from_source(): Warn if backend name is unset.

[Matthew Barnes <mbarnes src gnome org>]

commit fe2961aa501364ac45c2ded6834d312112818073
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sun Jul 15 11:05:06 2012 -0400

    mail_session_add_from_source(): Warn if backend name is unset.
    
    Even send-only accounts should have a backend name of "none".

 libemail-engine/e-mail-session.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)
---
diff --git a/libemail-engine/e-mail-session.c b/libemail-engine/e-mail-session.c
index 850f9b0..305bf2d 100644
--- a/libemail-engine/e-mail-session.c
+++ b/libemail-engine/e-mail-session.c
@@ -505,10 +505,7 @@ mail_session_add_from_source (EMailSession *session,
 
 	/* Sanity checks. */
 	g_return_if_fail (uid != NULL);
-
-	/* send-only accounts */
-	if (!backend_name)
-		return;
+	g_return_if_fail (backend_name != NULL);
 
 	/* Our own CamelSession.add_service() method will handle the
 	 * resulting CamelService, so we don't need the return value. */