[easytag] Fix ETFileDescription length

[David King <davidk src gnome org>]

commit df33e49df640f774520b76f7c7764c7dfc94a2b8
Author: David King <amigadave amigadave com>
Date:   Fri Apr 11 13:59:20 2014 +0100

    Fix ETFileDescription length

 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 b9921c1..e699c39 100644
--- a/src/et_core.c
+++ b/src/et_core.c
@@ -116,7 +116,7 @@ const ET_File_Description ETFileDescription[] =
     { UNKNOWN_FILE, "", UNKNOWN_TAG } /* This item must be placed at the end! */
 };
 
-const gsize ET_FILE_DESCRIPTION_SIZE = G_N_ELEMENTS (ETFileDescription);
+const gsize ET_FILE_DESCRIPTION_SIZE = G_N_ELEMENTS (ETFileDescription) - 1;
 
 /*
  * Colors Used