gvarianttype: fix a trivial missing const

diff --git a/glib/gvarianttype.c b/glib/gvarianttype.c
index 6a43fe2..deef7ed 100644 (file)
--- a/glib/gvarianttype.c
+++ b/glib/gvarianttype.c
@@ -581,7 +581,7 @@ g_variant_type_string_scan (const gchar  *string,
 gboolean
 g_variant_type_string_is_valid (const gchar *type_string)
 {
-  gchar *endptr;
+  const gchar *endptr;
 
   g_return_val_if_fail (type_string != NULL, FALSE);