Parses the HTTP Status-Line string in status_line into ver, status_code, and reason_phrase.
status_line must be terminated by either "\0" or "\r\n".
an HTTP Status-Line
if non-null, will be filled in with the HTTP version
if non-null, will be filled in with the status code
if non-null, will be filled in with the reason phrase
true if status_line was parsed successfully.
Parses the HTTP Status-Line string in status_line into ver, status_code, and reason_phrase.
status_line must be terminated by either "\0" or "\r\n".