Description of problem:

Multiple issues:

- when /etc/sudoers file contains already a line with "Defaults logfile=" but not the default logfile=/var/log/sudo.log, the test fails 
=> then when the remediation is applied and a new line with default value is added:

~~~
Defaults logfile=/var/log/sudofile.log
Defaults logfile=/var/log/sudo.log
~~~

=> and then the test still fails, because only one entry is expected


- The test to check the validity of the line is broken, because "Defaults_fake logfile=/var/log/sudo.log" will pass


Version-Release number of selected component (if applicable):
scap-security-guide-0.1.57-5.el8.noarch

How reproducible:
always

Steps to Reproduce:
1. scap xccdf eval --verbose DEVEL  --verbose-log-file oval.log --rule xccdf_org.ssgproject.content_rule_sudo_custom_logfile --profile xccdf_org.ssgproject.content_profile_cis  --results scan_resultsAfterRemediation.xml --report scan_reportAfterRemediation.html /usr/share/xml/scap/ssg/content/ssg-rhel8-ds.xml
2. ansible-playbook -b -k -K --become-user root   --become-method 'sudo' -i localhost, PlaybookToRemediatesudo.yml |& tee PlaybookToRemediate.output
3.

Actual results:
- Fault positive test
- Wrond remediation which leads to fail test

Expected results:
- Good remediation
- Failed test if Defaults_fake is used

Additional info:
Thank you !