Log Message:
curl: update to 7.73.0.

curl and libcurl 7.73.0

 Public curl releases:         195
 Command line options:         234
 curl_easy_setopt() options:   278
 Public functions in libcurl:  85
 Contributors:                 2270

This release includes the following changes:

 o curl: add --output-dir [25]
 o curl: support XDG_CONFIG_HOME to find .curlrc [3]
 o curl: update --help with categories [77]
 o curl_easy_option_*: new API for meta-data about easy options [40]
 o CURLE_PROXY: new error code [7]
 o mqtt: enable by default [28]
 o sftp: add new quote commands 'atime' and 'mtime' [6]
 o ssh: add the option CURLKHSTAT_FINE_REPLACE [27]
 o tls: add CURLOPT_SSL_EC_CURVES and --curves [29]

This release includes the following bugfixes:

 o altsvc: clone setting in curl_easy_duphandle [60]
 o base64: also build for smtp, pop3 and imap [81]
 o BUGS: convert document to markdown [107]
 o build-wolfssl: fix build with Visual Studio 2019 [114]
 o buildconf: invoke 'autoreconf -fi' instead [37]
 o checksrc: detect // comments on column 0 [132]
 o checksrc: verify do-while and spaces between the braces [2]
 o checksrc: warn on space after exclamation mark [129]
 o CI/azure: disable test 571 in the msys2 builds [93]
 o CI/azure: MQTT is now enabled by default [64]
 o CI/azure: no longer ignore results of test 1013 [43]
 o CI/tests: fix invocation of tests for CMake builds [117]
 o CI/travis: add a CI job with openssl3 (from git master) [51]
 o cleanups: avoid curl_ on local variables [53]
 o CMake: add option to enable Unicode on Windows [48]
 o cmake: make HTTP_ONLY also disable MQTT [58]
 o CMake: remove explicit `CMAKE_ANSI_CFLAGS` [45]
 o cmake: remove scary warning [96]
 o cmdline-opts/gen.pl: generate nicer "See Also" in curl.1 [66]
 o configure: don't say HTTPS-proxy is enabled when disabled [120]
 o configure: fix pkg-config detecting wolfssl [26]
 o configure: let --enable-debug set -Wenum-conversion with gcc >= 10 [56]
 o conn: check for connection being dead before reuse [39]
 o connect.c: remove superfluous 'else' in Curl_getconnectinfo [42]
 o curl.1: add see also no-progress-meter on two spots [67]
 o curl.1: fix typo invokved -> invoked [36]
 o curl: in retry output don't call all problems "transient" [74]
 o curl: make --libcurl show binary posts correctly [130]
 o curl: make checkpasswd use dynbuf [100]
 o curl: make file2memory use dynbuf [102]
 o curl: make file2string use dynbuf [103]
 o curl: make glob_match_url use dynbuf [101]
 o curl: make sure setopt CURLOPT_IPRESOLVE passes on a long [134]
 o curl: retry delays in parallel mode no longer sleeps blocking [70]
 o curl: use curlx_dynbuf for realloc when loading config files [73]
 o curl:parallel_transfers: make sure retry readds the transfer [71]
 o curl_get_line: build only if cookies or alt-svc are enabled [13]
 o curl_mime_headers.3: fix the example's use of curl_slist_append [83]
 o Curl_pgrsTime - return new time to avoid timeout integer overflow [32]
 o Curl_send: return error when pre_receive_plain can't malloc [111]
 o dist: add missing CMake Find modules to the distribution [14]
 o docs/LICENSE-MIXING: remove [79]
 o docs/opts: fix typos in two manual pages [119]
 o docs/RESOURCES: remove [105]
 o docs/TheArtOfHttpScripting: convert to markdown [106]
 o docs: add description about CI platforms to CONTRIBUTE.md [44]
 o docs: correct non-existing macros in man pages [35]
 o doh: add error message for DOH_DNS_NAME_TOO_LONG [17]
 o dynbuf: make sure Curl_dyn_tail() zero terminates [78]
 o easy_reset: clear retry counter [82]
 o easygetopt: pass a valid enum to avoid compiler warning [75]
 o etag: save and use the full received contents [4]
 o ftp: a 550 response to SIZE returns CURLE_REMOTE_FILE_NOT_FOUND [99]
 o ftp: avoid risk of reading uninitialized integers [76]
 o ftp: get rid of the PPSENDF macro [85]
 o ftp: make a 552 response return CURLE_REMOTE_DISK_FULL [87]
 o ftp: separate FTPS from FTP over "HTTPS proxy" [112]
 o git: ignore libtests in 3XXX area [16]
 o github: use new issue template feature [88]
 o HISTORY: mention alt-svc added in 2019
 o HTTP/3: update to OpenSSL_1_1_1g-quic-draft-29 [41]
 o http: consolidate nghttp2_session_mem_recv() call paths [80]
 o http_proxy: do not count proxy headers in the header bytecount [90]
 o http_proxy: do not crash with HTTPS_PROXY and NO_PROXY set [50]
 o imap: make imap_send use dynbuf for the send buffer management [110]
 o imap: set cselect_bits to CURL_CSELECT_IN initially [104]
 o ldap: reduce the amount of #ifdefs needed [124]
 o lib/Makefile.am: bump VERSIONINFO due to new functions [65]
 o lib1560: verify "redirect" to double-slash leading URL [20]
 o lib583: fix enum mixup
 o lib: fix -Wassign-enum warnings [84]
 o lib: make Curl_gethostname accept a const pointer [38]
 o libssh2: handle the SSH protocols done over HTTPS proxy [125]
 o libssh2: pass on the error from ssh_force_knownhost_key_type [47]
 o Makefile.m32: add ability to override zstd libs [ci skip] [10]
 o man pages: switch to https://example.com URLs [86]
 o MANUAL: update examples to resolve without redirects [122]
 o mbedtls: add missing header when defining MBEDTLS_DEBUG [133]
 o memdebug: remove 9 year old unused debug function [126]
 o multi: expand pre-check for socket readiness [21]
 o multi: handle connection state winsock events [31]
 o multi: implement wait using winsock events [22]
 o ngtcp2: adapt to new NGTCP2_PROTO_VER_MAX define [108]
 o ngtcp2: adapt to the new pkt_info arguments [18]
 o ntlm: fix condition for curl_ntlm_core usage [46]
 o openssl: avoid error conditions when importing native CA [52]
 o openssl: consider ALERT_CERTIFICATE_EXPIRED a failed verification [57]
 o openssl: Fix wincrypt symbols conflict with BoringSSL [9]
 o parsedate: tune the date to epoch conversion [95]
 o pause: only trigger a reread if the unpause sticks [92]
 o pingpong: use a dynbuf for the *_pp_sendf() function [113]
 o READMEs: convert several to markdown [115]
 o runtests: add %repeat[]% for test files [116]
 o runtests: allow creating files without newlines [72]
 o runtests: allow generating a binary sequence from hex
 o runtests: clear pid variables when failing to start a server [12]
 o runtests: make cleardir() erase dot files too [8]
 o runtests: provide curl's version string as %VERSION for tests [127]
 o schannel: fix memory leak when using get_cert_location [15]
 o schannel: return CURLE_PEER_FAILED_VERIFICATION for untrusted root [128]
 o scripts: improve the "get latest curl release tag" logic
 o sectransp: make it build with --disable-proxy [123]
 o select.h: make socket validation macros test for INVALID_SOCKET [24]
 o select: align poll emulation to return all relevant events [63]
 o select: fix poll-based check not detecting connect failure
 o select: reduce duplication of Curl_poll in Curl_socket_check [23]
 o select: simplify return code handling for poll and select [49]
 o setopt: if the buffer exists, refuse the new BUFFERSIZE [5]
 o setopt: return CURLE_BAD_FUNCTION_ARGUMENT on bad argument [91]
 o socketpair: allow CURL_DISABLE_SOCKETPAIR [11]
 o sockfilt: handle FD_CLOSE winsock event on write socket [30]
 o src: spell whitespace without whitespace [121]
 o SSLCERTS: fix English syntax [34]
 o strerror: honor Unicode API choice on Windows [109]
 o symbian: drop support [118]
 o telnet.c: depend on static requirement of WinSock version 2 [61]
 o test1541: remove since it is a known bug [68]
 o test163[12]: require http to be built-in to run [94]
 o test434: test -K use in a single line without newline [59]
 o test971: show test mismatches "inline"
 o tests/data: Fix some mismatched XML tags in test cases
 o tests/FILEFORMAT: document nonewline support for <file>
 o tests/FILEFORMAT: document type=shell for <command>
 o tests/server/util.c: fix support for Windows Unicode builds [131]
 o tests: remove pipelining tests [69]
 o tls: fix SRP detection by using the proper #ifdefs [33]
 o tls: provide the CApath verbose log on its own line [1]
 o tool_setopt: escape binary data to hex, not octal
 o tool_writeout: add new writeout variable, %{num_headers} [97]
 o travis: add a build using libressl (from git master) [55]
 o url: use blank credentials when using proxy w/o username and password [54]
 o urlapi: use more Curl_safefree [89]
 o vtls: deduplicate client certificates in ssl_config_data [98]
 o win32: drop support for WinSock version 1, require version 2 [62]
 o winbuild: convert the instruction text to README.md [19]