Description of problem:
--no_hback_allow option in ipa-server-install contains underscore "_" as
opposed to all other options which contains hypen "-"

[root@ipamaster /]# ipa-server-install --help |grep no_
    --no_hbac_allow     Don't install allow_all HBAC rule

Version-Release number of selected component (if applicable):
ipa-server-4.4.0-11.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1. ipa-server-install --help | grep no_hbac

Actual results:
Option --no_hbac_allow contains underscore as opposed to all other options


Expected results:
Replace underscore with hypen