From 6e462abb4d208584cb5f984f2f4c177bcec37dd4 Mon Sep 17 00:00:00 2001
From: Benedikt Hegner <hegner@cern.ch>
Date: Tue, 10 May 2016 23:31:29 +0200
Subject: hmm... test before commit

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

diff --git a/lib/spack/spack/config.py b/lib/spack/spack/config.py
index 06954f535b..3bdefd3a6c 100644
--- a/lib/spack/spack/config.py
+++ b/lib/spack/spack/config.py
@@ -548,7 +548,7 @@ def update_config(section, update_data, scope=None):
     if isinstance(update_data, list):
         configuration = update_data
     else:
-        configuration.extend(update_data)
+        configuration.update(update_data)
 
     # read only the requested section's data.
     scope.sections[section] = {section: configuration}
-- 
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