[easytag] Fix an invariant check from FALSE to NULL

[David King <davidk src gnome org>]

commit a3d4948cc205d252cd464c0366cd026d706c4adc
Author: David King <amigadave amigadave com>
Date:   Mon Feb 11 16:54:40 2013 +0000

    Fix an invariant check from FALSE to NULL

 src/et_core.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/et_core.c b/src/et_core.c
index b27479d..76b51a9 100644
--- a/src/et_core.c
+++ b/src/et_core.c
@@ -2458,7 +2458,7 @@ gboolean ET_Copy_File_Tag_Item (ET_File *ETFile, File_Tag *FileTag)
  */
 gboolean ET_Set_Filename_File_Name_Item (File_Name *FileName, gchar *filename_utf8, gchar *filename)
 {
-    g_return_val_if_fail (FileName != FALSE, FALSE);
+    g_return_val_if_fail (FileName != NULL, FALSE);
 
     if (filename_utf8 && filename)
     {