[SSSD] [sssd PR#1014][opened] sysdb: sanitize certmap rule name before using it in DN

[sumit-bose]

   URL: https://github.com/SSSD/sssd/pull/1014
Author: sumit-bose
 Title: #1014: sysdb: sanitize certmap rule name before using it in DN
Action: opened

PR body:
"""
The name of a certificate mapping and matching rule might contain
characters which are not allowed in RDNs an must be escaped before if can
be used in the DN of the cached certmap object.

Resolves: https://pagure.io/SSSD/sssd/issue/3721
"""

To pull the PR as Git branch:
git remote add ghsssd https://github.com/SSSD/sssd
git fetch ghsssd pull/1014/head:pr1014
git checkout pr1014