Use correct variable in the deprecated and abandoned Snoopy HTTP client. see #24210.

See also:
 * http://sourceforge.net/p/snoopy/bugs/60/
 * http://sourceforge.net/p/snoopy/bugs/62/
 * http://sourceforge.net/p/snoopy/bugs/73/
 * http://sourceforge.net/p/snoopy/bugs/77/
 * and probably more. This project is abandoned.

If any plugins are using this (instead of the WordPress HTTP API), this at least ensures that temp files are cleaned up.



git-svn-id: https://core.svn.wordpress.org/trunk@24591 1a063a9b-81f0-0310-95a4-ce76da25c4cd