fix print formatting string directives

- Axel Tillequin and Arnaud Ebalard added support for CURLOPT_ISSUERCERT, for
OpenSSL, NSS and GnuTLS-built libcurls.

- Axel Tillequin and Arnaud Ebalard added support for CURLOPT_CRLFILE, for
OpenSSL, NSS and GnuTLS-built libcurls.

- Introducing curl_easy_send() and curl_easy_recv(). They can be used to send
and receive data over a connection previously setup with curl_easy_perform()
and its CURLOPT_CONNECT_ONLY opt

- Introducing curl_easy_send() and curl_easy_recv(). They can be used to send
and receive data over a connection previously setup with curl_easy_perform()
and its CURLOPT_CONNECT_ONLY option. The sendrecv.c example was added to
show how they can be used.

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if () => if()
while () => while()
and some other minor re-indentings

I renamed the CURLE_SSL_PEER_CERTIFICATE error code to
CURLE_PEER_FAILED_VERIFICATION (standard CURL_NO_OLDIES style), and made this
return code get used by the previous SSH MD5 fingerprint c

I renamed the CURLE_SSL_PEER_CERTIFICATE error code to
CURLE_PEER_FAILED_VERIFICATION (standard CURL_NO_OLDIES style), and made this
return code get used by the previous SSH MD5 fingerprint check in case it
fails.

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Renamed the CURLE_FTP_SSL_FAILED error code to CURLE_USE_SSL_FAILED.
Renamed the curl_ftpssl enum to curl_usessl and its enumerated constants,
creating macros for backward compatibility.

Made some of the error strings returned by the *strerror functions more
generic, and more consistent with each other.

Renamed several libcurl error codes and options to make them more general
and allow reuse by multiple protocols. Several unused error codes were
removed. In all cases, macros were added to p

Renamed several libcurl error codes and options to make them more general
and allow reuse by multiple protocols. Several unused error codes were
removed. In all cases, macros were added to preserve source (and binary)
compatibility with the old names. These macros are subject to removal at
a future date, but probably not before 2009. An application can be
tested to see if it is using any obsolete code by compiling it with the
CURL_NO_OLDIES macro defined.

Documented some newer error codes in libcurl-error(3)

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CURLE_FTP_COULDNT_STOR_FILE is now known as CURLE_UPLOAD_FAILED. This is
because I just made SCP uploads return this value if the file size of
the upload file isn't given with CURLOPT_INFILES

CURLE_FTP_COULDNT_STOR_FILE is now known as CURLE_UPLOAD_FAILED. This is
because I just made SCP uploads return this value if the file size of
the upload file isn't given with CURLOPT_INFILESIZE*. Docs updated to
reflect this news, and a define for the old name was added to the public
header file.

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curlassert macro replaced with DEBUGASSERT macro defined in setup_once.h

Daniel Mirchandani fix to make libcurl build nicely on Winsock
build targets when --disable-verbose is specified.

Correct error code for CCC/SSL shutdown failure

- Linus Nielsen Feltzing introduced the --ftp-ssl-ccc command line option to
curl that uses the new CURLOPT_FTP_SSL_CCC option in libcurl. If enabled, it
will make libcurl shutdown SSL/TL

- Linus Nielsen Feltzing introduced the --ftp-ssl-ccc command line option to
curl that uses the new CURLOPT_FTP_SSL_CCC option in libcurl. If enabled, it
will make libcurl shutdown SSL/TLS after the authentication is done on a
FTP-SSL operation.

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James Housley brought support for SCP transfers

Armel Asselin separated CA cert verification problems from problems with
reading the (local) CA cert file to let users easier pinpoint the actual
problem. CURLE_SSL_CACERT_BADFILE (77) is the

Armel Asselin separated CA cert verification problems from problems with
reading the (local) CA cert file to let users easier pinpoint the actual
problem. CURLE_SSL_CACERT_BADFILE (77) is the new libcurl error code.

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Check for USE_WINSOCK instead of WIN32 where the check was done
to verify winsock API availability.

Replace ";;" with ";".

Remove redundant __CYGWIN__ symbol check

Maciej Karpiuk fixed a crash that would occur if we passed Curl_strerror()
an unknown error number on glibc systems.
http://curl.haxx.se/bug/view.cgi?id=1532289

Added revision ID-tag.

Fixed signed/unsigned convertion errors in Salford-C.
#ifdef around WSAEDISCON in strerror.c.

First curl_multi_socket() commit. Should primarily be considered as an internal
code rearrange to fit the future better.

CURLE_FTP_USER_PASSWORD_INCORRECT is not returned by libcurl anymore!

First commit of David McCreedy's EBCDIC and TPF changes.