compiler warning
"'rv' may be used uninitialized in this function".

Follow up to r1722154.


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     is used.

In https://bz.apache.org/bugzilla/show_bug.cgi?id=57585 some use cases
were reported in which IncludeOptional seems to be too strict in its
sanity checks.

This change is a proposal to relax IncludeOptional checks to silently
fail when a file path is not existent rather than returning SyntaxError.


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so in order to support it more changes are necessary.


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Using a fixed major version might not be the best
choice but using a fixed outdated one is even worse.


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Follup up to r821307.


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using pcre2.
Follow up to r1773454.


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One more style fix in ap_process_http_async_connection().



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While at it, fix style. No functional change overall.



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update CHANGES after backport



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cleanup changes and mod_http2 version number after backport.



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apr_socket_send() can return both an error and data, account for data in
the latter case (i.e. let next call fail, if any).



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We can destroy ap_pglobal because clean_child_exit() runs in DSO which would be
unloaded under us, so use atexit() to differ the final apr_terminate().



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   - add some links and color highligh
   - remove some <var> (i.e. italic) around parameters that should be written unmodified (On|Off...)

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Save a few bytes in the conf pool when handling 'ProxyHTMLDoctype' directive with a user defined  FPI

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     information retrievals on null bucket beams where it makes sense. [Stefan Eissing]



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PR 57525.

Reverts pre_config hook from r1656669 (happens too late for EXEC_ON_READ), and
ensures ap_macros is reset on restart with a pconf cleanup.

Proposed by: Jose Kahan <jose w3.org>
Reviewed by: ylavic


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It is assumed to be between 1 and 100 by lbmethods, so normalize it
accordingly.



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unixd.c: In function ‘ap_unixd_mpm_set_signals’:
unixd.c:579:5: error: implicit declaration of function ‘apr_signal’; did you mean ‘strsignal’? [-Werror=implicit-function-declaration]
     apr_signal(SIGPIPE, SIG_IGN);
     ^~~~~~~~~~
     strsignal

Not sure where it comes from, maybe related to r1812301.

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  *) mod_md: v1.0.1, ServerName/Alias names from pure-http: virtual hosts are no longer
     auto-added to a Managed Domain. Error counts of jobs are presisted. When the server
     restarts (gracefully) any errored staging areas are purged to reset the signup/renewal
     process.



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