Description of problem:

Running ipa hbactest now fails with

ipa: ERROR: TypeError: cannot concatenate 'str' and 'bool' objects
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/ipalib/cli.py", line 1350, in run
    sys.exit(api.Backend.cli.run(argv))
  File "/usr/lib/python2.7/site-packages/ipalib/cli.py", line 1115, in run
    rv = cmd.output_for_cli(self.api.Backend.textui, result, *args, **options)
  File "/usr/lib/python2.7/site-packages/ipaclient/plugins/hbactest.py", line
52, in output_for_cli
    textui.print_indented(result)
  File "/usr/lib/python2.7/site-packages/ipalib/cli.py", line 251, in
print_indented
    print((CLI_TAB * indent + text))
TypeError: cannot concatenate 'str' and 'bool' objects
ipa: ERROR: an internal error has occurred

Version-Release number of selected component (if applicable):

ipa-admintools-4.4.0-4.el7.noarch
python2-ipalib-4.4.0-4.el7.noarch
python2-ipaclient-4.4.0-4.el7.noarch

It's the same version IdM on the server side.

How reproducible:

Deterministic.

Steps to Reproduce:
1. Have IPA enrolled client, some user and HBAC service.
2. Run ipa hbactest --user=bob --host=wiki.example.test --service=wikiapp

Actual results:

--------------------
Access granted: True
--------------------
  Matched rules: allow_wikiapp
  Not matched rules: allow_all_users_services
ipa: ERROR: TypeError: cannot concatenate 'str' and 'bool' objects
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/ipalib/cli.py", line 1350, in run
    sys.exit(api.Backend.cli.run(argv))
  File "/usr/lib/python2.7/site-packages/ipalib/cli.py", line 1115, in run
    rv = cmd.output_for_cli(self.api.Backend.textui, result, *args, **options)
  File "/usr/lib/python2.7/site-packages/ipaclient/plugins/hbactest.py", line
52, in output_for_cli
    textui.print_indented(result)
  File "/usr/lib/python2.7/site-packages/ipalib/cli.py", line 251, in
print_indented
    print((CLI_TAB * indent + text))
TypeError: cannot concatenate 'str' and 'bool' objects
ipa: ERROR: an internal error has occurred

Expected results:

No traceback, no error.

Additional info: