Description of problem:
"ipa console" command fails with error

Version-Release number of selected component (if applicable):
ipa-server-4.6.5-6.el7.x86_64

How reproducible:
Stable

Steps to Reproduce:
1. install ipa server
2. run "ipa console"


Actual results:
ipa: ERROR: non-public: IOError: [Errno 2] No such file or directory
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/ipalib/backend.py", line 141, in
execute
    return self.Command[_name](*args, **options)
  File "/usr/lib/python2.7/site-packages/ipalib/frontend.py", line 450, in
__call__
    return self.__do_call(*args, **options)
  File "/usr/lib/python2.7/site-packages/ipalib/frontend.py", line 478, in
__do_call
    ret = self.run(*args, **options)
  File "/usr/lib/python2.7/site-packages/ipalib/cli.py", line 1012, in run
    self._setup_tab_completion(local)
  File "/usr/lib/python2.7/site-packages/ipalib/cli.py", line 971, in
_setup_tab_completion
    readline.read_history_file(history)
IOError: [Errno 2] No such file or directory
ipa: ERROR: an internal error has occurred


Expected results:
(Custom IPA interactive Python console)
    api: IPA API object
    pp: pretty printer


Additional info:
The error is at line 972 in /usr/lib/python2.7/site-packages/ipalib/cli.py:
when history file does not exists IOError is raised, but the code expects it to
be OSError.