[gnome-photos] appdata: Mark developer_name for translation

[Piotr Drąg <piotrdrag src gnome org>]

commit 4c4665ecc64bedbb7b10bdf671a39a95616d14d1
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Aug 19 17:18:27 2017 +0200

    appdata: Mark developer_name for translation

 data/org.gnome.Photos.appdata.xml.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/org.gnome.Photos.appdata.xml.in b/data/org.gnome.Photos.appdata.xml.in
index ab96aa1..949cc98 100644
--- a/data/org.gnome.Photos.appdata.xml.in
+++ b/data/org.gnome.Photos.appdata.xml.in
@@ -46,7 +46,7 @@
   <url type="donation">http://www.gnome.org/friends</url>
   <url type="homepage">https://wiki.gnome.org/Apps/Photos</url>
   <url type="translate">https://wiki.gnome.org/TranslationProject</url>
-  <developer_name>The GNOME Project</developer_name>
+  <_developer_name>The GNOME Project</_developer_name>
   <project_group>GNOME</project_group>
   <update_contact>debarshir_at_gnome.org</update_contact>
   <translation type="gettext">gnome-photos</translation>