[easytag] Make another function static

[David King <davidk src gnome org>]

commit ed4cd6dcb6a0f53aca124046c42ba43120d61cc8
Author: David King <amigadave amigadave com>
Date:   Mon Dec 12 18:12:42 2016 +0000

    Make another function static
    
    Hide et_application_window_tag_area_display_et_file() from other files.

 src/application_window.c |    2 +-
 src/application_window.h |    1 -
 2 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/application_window.c b/src/application_window.c
index 93c6154..f1f6be6 100644
--- a/src/application_window.c
+++ b/src/application_window.c
@@ -279,7 +279,7 @@ et_application_window_tag_area_create_file_tag (EtApplicationWindow *self)
     return et_tag_area_create_file_tag (ET_TAG_AREA (priv->tag_area));
 }
 
-gboolean
+static gboolean
 et_application_window_tag_area_display_et_file (EtApplicationWindow *self,
                                                 const ET_File *ETFile)
 {
diff --git a/src/application_window.h b/src/application_window.h
index 2b4f97d..9132c1d 100644
--- a/src/application_window.h
+++ b/src/application_window.h
@@ -46,7 +46,6 @@ struct _EtApplicationWindowClass
 GType et_application_window_get_type (void);
 EtApplicationWindow *et_application_window_new (GtkApplication *application);
 File_Tag * et_application_window_tag_area_create_file_tag (EtApplicationWindow *self);
-gboolean et_application_window_tag_area_display_et_file (EtApplicationWindow *self, const ET_File *ETFile);
 void et_application_window_tag_area_clear (EtApplicationWindow *self);
 void et_application_window_tag_area_set_sensitive (EtApplicationWindow *self, gboolean sensitive);
 const gchar * et_application_window_file_area_get_filename (EtApplicationWindow *self);