From db5a9495e46a50a378a590b2d36a1124dee674f2 Mon Sep 17 00:00:00 2001
From: Martin Diehl <m.diehl@mpie.de>
Date: Tue, 2 May 2017 07:44:59 +0200
Subject: [PATCH] differentiate between None and False

---
 lib/damask/util.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/damask/util.py b/lib/damask/util.py
index 1baaaaea8..54de9acf9 100644
--- a/lib/damask/util.py
+++ b/lib/damask/util.py
@@ -52,7 +52,7 @@ def croak(what, newline = True):
 def report(who = None,
            what = None):
   """Reports script and file name"""
-  croak( (emph(who)+': ' if who else '') + (what if what else '') )
+  croak( (emph(who)+': ' if who is not None else '') + (what if what is not None else '') )
 
 
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