Fix incorrect binlog permissions errors

[sethsamuel]

What does this PR do?

Checks if binary logs are enabled before logging a warning about permissions.

Motivation

If binlogs are disabled the SHOW will fail but it's not a permissions error, binlogs are just disabled.

Additional Notes

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Changelog entries must be created for modifications to shipped code
• Add the qa/skip-qa label if the PR doesn't need to be tested during QA.
• If you need to backport this PR to another branch, you can add the backport/<branch-name> label to the PR and it will automatically open a backport PR once this one is merged

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 87.93%. Comparing base (3fa5466) to head (309c5a1).
Report is 8 commits behind head on master.

Additional details and impacted files

Flag	Coverage Δ
activemq	?
cassandra	?
hive	?
hivemq	?
ignite	?
jboss_wildfly	?
kafka	?
mysql	88.62% <0.00%> (-0.92%)	⬇️
presto	?
solr	?

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