Unknown option: "-3" Unix manual page for CURLOPT_PROXYUSERPWD. (host=minya system=Darwin)
CURLOPT_PROXYUSERPWD(3)    curl_easy_setopt options    CURLOPT_PROXYUSERPWD(3)

NAME
       CURLOPT_PROXYUSERPWD  - user name and password to use for proxy authen-
       tication

SYNOPSIS
       #include <curl/curl.h>

       CURLcode  curl_easy_setopt(CURL  *handle,  CURLOPT_PROXYUSERPWD,   char
       *userpwd);

DESCRIPTION
       Pass  a  char * as parameter, which should be [user name]:[password] to
       use for the connection to the HTTP proxy. Both the name and  the  pass-
       word  will be URL decoded before use, so to include for example a colon
       in the user name you should encode it as %3A. (This is different to how
       CURLOPT_USERPWD(3) is used - beware.)

       Use CURLOPT_PROXYAUTH(3) to specify the authentication method.

       The  application  does not have to keep the string around after setting
       this option.

DEFAULT
       This is NULL by default.

PROTOCOLS
       Used with all protocols that can use a proxy

EXAMPLE
       TODO

AVAILABILITY
       Always

RETURN VALUE
       Returns CURLE_OK if proxies are supported, CURLE_UNKNOWN_OPTION if not,
       or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO
       CURLOPT_PROXY(3), CURLOPT_PROXYTYPE(3),

libcurl 7.54.0                 December 21, 2016       CURLOPT_PROXYUSERPWD(3)