[eog] EogMetadataSidebar: Make header include guard actually work

[Felix Riemann <friemann src gnome org>]

commit dca51394f04dfe730a98100bafde12a64af5966e
Author: Felix Riemann <friemann gnome org>
Date:   Sun May 6 12:18:27 2018 +0200

    EogMetadataSidebar: Make header include guard actually work
    
    The include guard had a typo which prevented it from working.
    Also strip the possibly reserved double underscores from it.

 src/eog-metadata-sidebar.h |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/eog-metadata-sidebar.h b/src/eog-metadata-sidebar.h
index 3ed777d..dc56711 100644
--- a/src/eog-metadata-sidebar.h
+++ b/src/eog-metadata-sidebar.h
@@ -21,8 +21,8 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
-#ifndef __EOG_METADATA_SIDEBAR_H__
-#define __EOG_METADATA_SIDEBAR_H_
+#ifndef EOG_METADATA_SIDEBAR_H
+#define EOG_METADATA_SIDEBAR_H
 
 #include <glib-object.h>
 #include <gtk/gtk.h>
@@ -60,4 +60,4 @@ GtkWidget* eog_metadata_sidebar_new (EogWindow *window);
 
 G_END_DECLS
 
-#endif /* __EOG_METADATA_SIDEBAR_H__ */
+#endif /* EOG_METADATA_SIDEBAR_H */