Make more lookup plugins tolerant of new variable system, with a little better 'do what I mean' logic to resolving

what happens if you get a string back as a template result.

lib/ansible/runner/lookup_plugins/dnstxt.py

@@ -40,9 +40,13 @@ class LookupModule(object):
         if HAVE_DNS == False:
             raise errors.AnsibleError("Can't LOOKUP(dnstxt): module dns.resolver is not installed")
 
-    def run(self, terms, **kwargs):
-        if isinstance(terms, basestring):
-            terms = [ terms ]
+    def run(self, terms, inject=None, **kwargs):
+
+        terms = utils.listify_lookup_plugin_terms(terms, self.basedir, inject) 
+
+
+
+
         ret = []
         for term in terms:
             domain = term.split()[0]