sudo: accept -n too (issue #108)

examples/playbook/ansible.cfg

@@ -1,5 +1,4 @@
 [defaults]
-sudo_flags = -HE
 inventory = hosts
 strategy_plugins = ../../ansible_mitogen/plugins/strategy
 library = modules

mitogen/sudo.py

@@ -52,14 +52,14 @@ SUDO_OPTIONS = [
     #(False, 'bool', '--remove-timestamp', '-K')
     #(False, 'bool', '--reset-timestamp', '-k')
     #(False, 'bool', '--list', '-l')
-    #(False, 'bool', '--non-interactive', '-n')
     #(False, 'bool', '--preserve-groups', '-P')
     #(False, 'str', '--prompt', '-p')
     #(False, 'str', '--role', '-r')
 
-    # For now the password is always typed interactively on a TTY, so accept
-    # this option but do not pass it through.
+    # These options are supplied by default by Ansible, but are ignored, as
+    # sudo always runs under a TTY with Mitogen.
     (True, 'bool', '--stdin', '-S'),
+    (True, 'bool', '--non-interactive', '-n'),
 
     #(False, 'str', '--shell', '-s')
     #(False, 'str', '--type', '-t')