[gok] Add string.h include for strcmp() - bgo#591506

[Gerd Kohlberger <gerdk src gnome org>]

commit f0f134777016c2b361ee6592a26d199103f46f0a
Author: Vincent Untz <vuntz gnome org>
Date:   Mon Aug 24 12:55:08 2009 +0200

    Add string.h include for strcmp() - bgo#591506

 gok/test-gok-action.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gok/test-gok-action.c b/gok/test-gok-action.c
index 7957a2b..ab23ff1 100644
--- a/gok/test-gok-action.c
+++ b/gok/test-gok-action.c
@@ -24,6 +24,8 @@
 #  include <config.h>
 #endif
 
+#include <string.h>
+
 #include <gtk/gtk.h>
 #include "gok-action.h"
 #include "gok-log.h"