[gnome-photos] main-window: Replace PACKAGE_NAME with "Photos"

[Debarshi Ray <debarshir src gnome org>]

commit 265901ba6863b6f420cbc763bbdd055760c9b420
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Jan 5 17:07:49 2018 +0100

    main-window: Replace PACKAGE_NAME with "Photos"
    
    Preprocessor macros are not expanded by xgettext when extracting
    translatable strings.

 src/photos-main-window.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/photos-main-window.c b/src/photos-main-window.c
index a0f35a31..c1e8b9cd 100644
--- a/src/photos-main-window.c
+++ b/src/photos-main-window.c
@@ -475,7 +475,7 @@ photos_main_window_show_about (PhotosMainWindow *self)
                                         "Copyright © 2015 – 2017 Umang Jain"),
                          "license-type", GTK_LICENSE_GPL_3_0,
                          "logo-icon-name", app_id,
-                         "program-name", _(PACKAGE_NAME),
+                         "program-name", _("Photos"),
                          "version", version,
                          "website", PACKAGE_URL,
                          "wrap-license", TRUE,