pcs cluster auth or pcs host auth fails with "Username and/or password is incorrect" and /var/log/secure shows a pam_access error

Issue

• The pcs cluster auth or pcs host auth command fails with a bad password error. /var/log/secure shows a message like the following when the login fails:

Jan 10 07:51:06 node1 ruby: pam_access(pcsd:account): access denied for user `hacluster' from `pcsd'