Merge r1621367, r1621372, r1625952 from trunk:

PR53218
Allow for longer worker names and make truncation a non-fatal
error... 


Correct loglevel.


oops... prepend 0

Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1634520 13f79535-47bb-0310-9956-ffa450edef68