[easytag] Mark string array as containing const pointers

[David King <davidk src gnome org>]

commit b8998aa2c9ca2773c147d5a9c04f9c738f5510c1
Author: David King <amigadave amigadave com>
Date:   Sun Oct 6 11:10:50 2013 +0100

    Mark string array as containing const pointers

 src/scan.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/scan.c b/src/scan.c
index 3c99c07..3f3bc38 100644
--- a/src/scan.c
+++ b/src/scan.c
@@ -1505,7 +1505,7 @@ void Scan_Process_Fields_First_Letters_Uppercase (gchar *string)
     gboolean set_to_upper_case, set_to_upper_case_tmp;
     // There have to be space at the end of words to seperate them from prefix
     // Chicago Manual of Style "Heading caps" Capitalization Rules (CMS 1993, 282) 
(http://www.docstyles.com/cmscrib.htm#Note2)
-    gchar *exempt[] =
+    const gchar * exempt[] =
     {
         "a ",       "a_",
         "against ", "against_",