docs: correct proxy server example

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9200 5f5364db-9458-4db8-a492-e30667be6df6
HttpWebConnection: socket reuse (regression in 2.14).

Issue 1577

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9201 5f5364db-9458-4db8-a492-e30667be6df6
checkstyle

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9202 5f5364db-9458-4db8-a492-e30667be6df6