Backport of r1682923 from trunk.


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Style (mostly indent)
remove a useless local variable initialization

More style

Constify + save a few bytes in conf pool (+ some minor space adjustments)

Save a few bytes in conf pool and axe a function that duplicates 'ap_set_string_slot'

Save a few bytes in conf pool
Submitted by: jailletc36
Reviewed/backported by: jim


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PR 57968: Don't lowercase the argument to SetHandler if the handler is
proxy:unix.


Submitted by: covener
Reviewed/backported by: jim


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handler or input filter already did it while reading the request (causing
a double response body).

Submitted by: ylavic
Backports: r1482522 (partial, ap_map_http_request_error() things only!),
           r1529988, r1529991, r1643537, r1643543, r1657897, r1665625, 
           r1665721, r1674056
Reviewed by: ylavic, minfrin, wrowe




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SSL_CTX_set_tmp_ecdh increases reference count, so we have to call
EC_KEY_free, otherwise eckey will not be freed.

Backports: r1666363
Author: jkaluza
Reviewed by: rjung, ylavic, wrowe



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Follow up to r1679181: fix warning (return discards qualifiers from pointer target type).

Submitted by: ylavic
Reviewed by: trawick, rjung


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a simple change).


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