Fix use of array concatenation

diff --git a/contrib/utilities/checkdoxygen.py b/contrib/utilities/checkdoxygen.py
index 4a43942d97427b8b917b8d4d6c306fbfb00ee020..4de75128e20e8e516cd0f1a8b18326f2c5c49c98 100755 (executable)
--- a/contrib/utilities/checkdoxygen.py
+++ b/contrib/utilities/checkdoxygen.py
@@ -119,7 +119,7 @@ if 'intro.dox' in args[0]:
     fstep.close()
 
     fres = open(resultsname)
-    lines.append(fres.readlines())
+    lines += fres.readlines()
     fres.close()
     
     # check the file group