"-H" (concat "X-Twitter-Client-Version: " riece-version-number)
"-H" "X-Twitter-Client-URL: http://riece.nongnu.org/twitter.xml"
"-u" credential
+ "-d" "source=riece"
"-d" (concat "status="
(riece-twitter-escape-string
(encode-coding-string (riece-message-text message)