rib: Switching to use global IO

Change-Id: I5eca302c65d868810bd59ab654b7ea74762dc7ee
diff --git a/wscript b/wscript
index 61bc03f..440b04d 100644
--- a/wscript
+++ b/wscript
@@ -170,7 +170,7 @@
 
     bld(features='subst',
         source='tools/nfd-status-http-server.py',
-        target='nfd-status-http-server',
+        target='bin/nfd-status-http-server',
         install_path="${BINDIR}",
         chmod=0755)