Mako template returns unicode strings (#681003)

New mako template returns unicode strings, which are
a problem for shlex. We need to encode them to ascii.

src/pylorax/ltmpl.py

@@ -50,6 +50,9 @@ class LoraxTemplate(object):
         lines = map(lambda line: line.strip(), lines)
         lines = filter(lambda line: line, lines)
 
+        # mako template now returns unicode strings
+        lines = map(lambda line: line.encode("ascii"), lines)
+
         # split with shlex
         lines = map(shlex.split, lines)