Log Message:
py-httpie: updated to 0.9.9

0.9.8:
* Extended auth plugin API.
* Added exit status code 7 for plugin errors.
* Added support for curses-less Python installations.
* Fixed REQUEST_ITEM arg incorrectly being reported as required.
* Improved CTRL-C interrupt handling.
* Added the standard exit status code 130 for keyboard interrupts.

0.9.6:
* Added Python 3 as a dependency for Homebrew installations
  to ensure some of the newer HTTP features work out of the box
  for macOS users (starting with HTTPie 0.9.4.).
* Added the ability to unset a request header with Header:, and send an
  empty value with Header;.
* Added --default-scheme <URL_SCHEME> to enable things like
  $ alias https='http --default-scheme=https.
* Added -I as a shortcut for --ignore-stdin.
* Added fish shell completion (located in extras/httpie-completion.fish
  in the Github repo).
* Updated requests to 2.10.0 so that SOCKS support can be added via
  pip install requests[socks].
* Changed the default JSON Accept header from application/json
  to application/json, */*.
* Changed the pre-processing of request HTTP headers so that any leading
  and trailing whitespace is removed.

0.9.4:
* Added Content-Type of files uploaded in multipart/form-data requests
* Added --ssl=<PROTOCOL> to specify the desired SSL/TLS protocol version
  to use for HTTPS requests.
* Added JSON detection with --json, -j to work around incorrect
  Content-Type
* Added --all to show intermediate responses such as redirects (with --follow)
* Added --history-print, -P WHAT to specify formatting of intermediate responses
* Added --max-redirects=N (default 30)
* Added -A as short name for --auth-type
* Added -F as short name for --follow
* Removed the implicit_content_type config option
  (use "default_options": ["--form"] instead)
* Redirected stdout doesn't trigger an error anymore when --output FILE
  is set
* Changed the default --style back to solarized for better support
  of light and dark terminals
* Improved --debug output
* Fixed --session when used with --download
* Fixed --download to trim too long filenames before saving the file
* Fixed the handling of Content-Type with multiple +subtype parts
* Removed the XML formatter as the implementation suffered from multiple issues