[evolution-data-server] e_data_cal_respond_get_attachment_uris: Fix a typo.

[Matthew Barnes <mbarnes src gnome org>]

commit ee06a9261573cf68d5a818f773e0a94738b9ad76
Author: Matthew Barnes <mbarnes redhat com>
Date:   Mon Mar 11 15:19:58 2013 -0400

    e_data_cal_respond_get_attachment_uris: Fix a typo.
    
    Kind of an important typo, but a typo nonetheless...

 calendar/libedata-cal/e-data-cal.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/calendar/libedata-cal/e-data-cal.c b/calendar/libedata-cal/e-data-cal.c
index eeec393..9228b67 100644
--- a/calendar/libedata-cal/e-data-cal.c
+++ b/calendar/libedata-cal/e-data-cal.c
@@ -1827,7 +1827,7 @@ e_data_cal_respond_get_attachment_uris (EDataCal *cal,
        /* Translators: This is prefix to a detailed error message */
        g_prefix_error (&error, "%s", _("Could not retrieve attachment uris: "));
 
-       if (error != NULL) {
+       if (error == NULL) {
                gchar **strv;
                guint length;
                gint ii = 0;