[DoH] Check HTTP code not in 400 range

homer.py

@@ -708,7 +708,7 @@ def run_check_trunc(connection):
     if print_result(connection, request, prefix=test_name, display_err=True): # The test must fail, or returns FORMERR.
         ok = (request.rcode == dns.rcode.FORMERR)
     else:
-        ok = False
+        ok = (request.rcode >= 400 and request.rcode < 500)
     return ok
 
 def run_check_additionals(connection):

tests.yaml

@@ -66,7 +66,6 @@ tests:
           - 'https://doh.bortzmeyer.fr/'
           - 'ressources-pedagogiques.org'
       retcode: 0
-      stderr: ''
       stdout: "OK\n"
 
     - exe: './homer.py'