[gnome-photos] main-window: Update copyright notices

[Debarshi Ray <debarshir src gnome org>]

commit 6f24831d44bc43321767cf95c668ebc9d57d3d95
Author: Debarshi Ray <debarshir gnome org>
Date:   Sun Nov 26 13:38:13 2017 +0100

    main-window: Update copyright notices
    
    ... to mention the most active contributors.

 src/photos-main-window.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/src/photos-main-window.c b/src/photos-main-window.c
index c09a478..a0f35a3 100644
--- a/src/photos-main-window.c
+++ b/src/photos-main-window.c
@@ -471,9 +471,8 @@ photos_main_window_show_about (PhotosMainWindow *self)
                          "artists", PHOTOS_ARTISTS,
                          "authors", PHOTOS_AUTHORS,
                          "comments", _("Access, organize and share your photos on GNOME"),
-                         "copyright", _("Copyright © 2013 Intel Corporation. All rights reserved.\n"
-                                        "Copyright © 2014 – 2015 Pranav Kant\n"
-                                        "Copyright © 2012 – 2017 Red Hat, Inc."),
+                         "copyright", _("Copyright © 2012 – 2017 Red Hat, Inc.\n"
+                                        "Copyright © 2015 – 2017 Umang Jain"),
                          "license-type", GTK_LICENSE_GPL_3_0,
                          "logo-icon-name", app_id,
                          "program-name", _(PACKAGE_NAME),