[glib] goption: Remove an unused assignment

[Philip Withnall <pwithnall src gnome org>]

commit afea86a7ef4f73a6fffd2155f2ddf411bb6fd8c6
Author: Philip Withnall <philip tecnocode co uk>
Date:   Sat Jun 21 12:28:54 2014 +0100

    goption: Remove an unused assignment
    
    Coverity issue: #1159514
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732005

 glib/goption.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/glib/goption.c b/glib/goption.c
index 2e45292..6438281 100644
--- a/glib/goption.c
+++ b/glib/goption.c
@@ -1188,8 +1188,8 @@ parse_arg (GOptionContext *context,
     {
     case G_OPTION_ARG_NONE:
       {
-        change = get_change (context, G_OPTION_ARG_NONE,
-                             entry->arg_data);
+        (void) get_change (context, G_OPTION_ARG_NONE,
+                           entry->arg_data);
 
         *(gboolean *)entry->arg_data = !(entry->flags & G_OPTION_FLAG_REVERSE);
         break;