[sysprof] credits: make strings arrays const

[Christian Hergert <chergert src gnome org>]

commit 7bbe8cec72df8301d70b28d31165b026ec37ee33
Author: Christian Hergert <chergert redhat com>
Date:   Tue Jun 21 12:49:26 2016 -0700

    credits: make strings arrays const

 src/sp-credits.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/sp-credits.h b/src/sp-credits.h
index acaf894..21523ae 100644
--- a/src/sp-credits.h
+++ b/src/sp-credits.h
@@ -5,7 +5,7 @@
 
 G_BEGIN_DECLS
 
-static gchar *sysprof_authors[] = {
+static const gchar *sysprof_authors[] = {
   "Bastien Nocera",
   "Behdad Esfahbod",
   "Christian Hergert",
@@ -28,7 +28,7 @@ static gchar *sysprof_authors[] = {
   NULL
 };
 
-static gchar *sysprof_artists[] = {
+static const gchar *sysprof_artists[] = {
   "Jakub Steiner",
   NULL
 };