[evolution-ews] Set properly the multi part type in a cancellation message

[Or Goshen <ogosh src gnome org>]

commit 6e33c7a772f9c18e92773c7deefbe35d9ac5898b
Author: Or Goshen <orx goshen intel com>
Date:   Sun Aug 21 12:43:11 2011 +0300

    Set properly the multi part type in a cancellation message

 src/calendar/e-cal-backend-ews.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/calendar/e-cal-backend-ews.c b/src/calendar/e-cal-backend-ews.c
index d3782bf..05efef9 100644
--- a/src/calendar/e-cal-backend-ews.c
+++ b/src/calendar/e-cal-backend-ews.c
@@ -2444,7 +2444,7 @@ ewscal_send_cancellation_email (EEwsConnection *cnc, CamelAddress *from, CamelIn
 	free (ical_str);
 
 	multi = camel_multipart_new ();
-	camel_content_type_set_param(CAMEL_DATA_WRAPPER (multi)->mime_type, "type", "multipart/alternative");
+	camel_data_wrapper_set_mime_type(CAMEL_DATA_WRAPPER (multi), "multipart/alternative");
 	camel_multipart_add_part (multi, text_part);
 	camel_multipart_set_boundary (multi, NULL);
 	camel_multipart_add_part (multi, vcal_part);