[Logging Wiki] Update of "Log4j2ReleaseGuide" by RalphG oers

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The "Log4j2ReleaseGuide" page has been changed by RalphGoers:
https://wiki.apache.org/logging/Log4j2ReleaseGuide?action=diff&rev1=30&rev2=31

  If the release fails after sending the vote email:
   1. Login to http://repository.apache.org using your ASF credentials. Select "Staging Repositories" then check the org.apache.logging repository and drop it.
   1. Rename the release tag in Git to add {{{rcn}}} to the end of the tag. '''Note that this may not be possible in Git depending on configuration'''
+ {{{
+ git tag log4j-n.n log4j-n.n-rcn
+ git tag -d log4j-n.n
+ git push origin :refs/tags/log4j-n.n
+ git push --tags
+ }}}
-  1. Reset the version numbers in all of the poms back to the release snapshot.
+  1.#3 Reset the version numbers in all of the poms back to the release snapshot.
   1. Restart the release process as a new release candidate.