build: Cleanup and update of build scripts

Change-Id: I7fb5b8696d3b068249ae16b117bd27646d990dc3
diff --git a/tools/peek/wscript b/tools/peek/wscript
index b719c8b..fa657a0 100644
--- a/tools/peek/wscript
+++ b/tools/peek/wscript
@@ -20,5 +20,5 @@
 
     ## (for unit tests)
 
-    bld(name='peek-objects',
+    bld(target='peek-objects',
         use='ndnpeek-objects')