curl and libcurl 7.71.1

 Public curl releases:         193
 Command line options:         232
 curl_easy_setopt() options:   277
 Public functions in libcurl:  82
 Contributors:                 2210

This release includes the following bugfixes:

 o cirrus-ci: disable FreeBSD 13 (again) [14]
 o Curl_inet_ntop: always check the return code [12]
 o CURLOPT_READFUNCTION.3: provide the upload data size up front [5]
 o DYNBUF.md: fix a typo: trail => tail [2]
 o escape: make the URL decode able to reject only %00-bytes
 o escape: zero length input should return a zero length output [11]
 o examples/multithread.c: call curl_global_cleanup() [16]
 o http2: set the correct URL in pushed transfers [9]
 o http: fix proxy auth with blank password [3]
 o mbedtls: fix build with disabled proxy support [7]
 o ngtcp2: sync with current master [15]
 o openssl: Fix compilation on Windows when ngtcp2 is enabled [10]
 o Revert "multi: implement wait using winsock events" [6]
 o sendf: improve the message on client write errors [13]
 o terminology: call them null-terminated strings [1]
 o tool_cb_hdr: Fix etag warning output and return code [4]
 o url: allow user + password to contain "control codes" for HTTP(S) [8]
 o vtls: compare cert blob when finding a connection to reuse [17]

This release includes the following known bugs:

 o see docs/KNOWN_BUGS (https://curl.haxx.se/docs/knownbugs.html)

This release would not have looked like this without help, code, reports and
advice from friends like these:

  Alexandre Pion, Baruch Siach, coinhubs on github, Daniel Stenberg,
  Denis Baručić, Gergely Nagy, Javier Blazquez, Jonathan Cardoso Machado,
  Jon Johnson Jr, Kristoffer Gleditsch, Lucien Zürcher, Nicolas Sterchele,
  qiandu2006 on github, Ray Satiro, Siva Sivaraman, tmkk on github,
  (16 contributors)

        Thanks! (and sorry if I forgot to mention someone)

References to bug reports and discussions on issues:

 [1] = https://curl.haxx.se/bug/?i=5598
 [2] = https://curl.haxx.se/bug/?i=5599
 [3] = https://curl.haxx.se/bug/?i=5613
 [4] = https://curl.haxx.se/bug/?i=5612
 [5] = https://curl.haxx.se/bug/?i=5607
 [6] = https://curl.haxx.se/bug/?i=5631
 [7] = https://curl.haxx.se/bug/?i=5615
 [8] = https://curl.haxx.se/bug/?i=5582
 [9] = https://curl.haxx.se/bug/?i=5589
 [10] = https://curl.haxx.se/bug/?i=5606
 [11] = https://curl.haxx.se/bug/?i=5601
 [12] = https://curl.haxx.se/bug/?i=5412
 [13] = https://curl.haxx.se/bug/?i=5594
 [14] = https://curl.haxx.se/bug/?i=5628
 [15] = https://curl.haxx.se/bug/?i=5624
 [16] = https://curl.haxx.se/bug/?i=5622
 [17] = https://curl.haxx.se/bug/?i=5617
