clarify part of this backport from 10 days ago:

  http://svn.apache.org/viewcvs.cgi?rev=390548&view=rev
  


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Submitted by: rpleum


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PR:          31759
Reviewed by: rpleum, jim


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(russian translation)


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Some of the russian translations, which have a very little difference between their English originals,
are transferred from 2.0.x branch.


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* Disable persistent connections for SSL backends again as we do not
  handle them correctly, because we recreate backend->connection for each
  request and thus try to initialize an already existing SSL connection.

Noticed by: jorton
Submitted by: rpluem
Reviewed by: rpluem, trawick, jim


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  do not work any longer.


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Merge r384580, r390210 and r390619 from trunk, changing the flushing band-aid in mod_proxy_ajp to be configurable.


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PR: 38403


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    * mod_isapi: Trivial compiler emit fixes for const'ness - noticed on OS/X
      Correct lvalue assignments (lvalue casts not allowed) - noticed on Sol.
      Resolve use of SetLastError with apr_set_os_error() and axe MAKEFILE
      for a literal value.  Permits mod_isapi to load and run on Unix.


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Move my -0 to a +1 for this patch, after going back and reading more of the email about it.  It isn't pretty, but there just isn't a better way for now.


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Better explain what this patch is about. It refers
to:

  *) Correctly initialize mod_proxy workers, which use a
     combination of local and shared datasets. Adjust logging
     to better trace usage. PR 38403.

The current impl is broken...


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  not just the comment.


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Merge r377053, r377057 and r377525 from trunk, fixing several issues with mod_proxy_http and keep-alive headers.


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  APR_FILEPATH_NOTABOVEROOT was undefined with a left-hand NULL
  or empty path.  The SECUREROOTPATH and NOTABSOLUTE tests were
  sufficient for this application.  Adjusts for a bug in earlier
  versions of APR with this undefined value.


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