From afdb830d5c8a4ed5a11e57c7db34a6b56d5b1ee1 Mon Sep 17 00:00:00 2001
From: Tom Henderson <tomh@tomh.org>
Date: Mon, 18 Nov 2013 08:53:07 -0800
Subject: [PATCH] update comment to align with ns-3.18.1

---
 bindings/python/wscript | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/bindings/python/wscript b/bindings/python/wscript
index f7fcc782a..23c0adea5 100644
--- a/bindings/python/wscript
+++ b/bindings/python/wscript
@@ -366,9 +366,10 @@ class apiscan_task(Task.Task):
         return retval
 
     def runnable_status(self):
-        # Waf Task will usually run if the signature of the build changes
-        # but skip otherwise.  Here, we want to always run this task if
-        # user invoked --apiscan
+        # By default, Waf Task will skip running a task if the signature of
+        # the build has not changed.  We want this task to always run if
+        # invoked by the user, particularly since --apiscan=all will require
+        # invoking this task many times, once per module.
         return RUN_ME
 
 def get_modules_and_headers(bld):