increase wait

http://chkbuild002.hsbt.org/chkbuild/ruby-trunk/log/20140518T160015Z.fail.html.gz

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46007 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-05-19

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46008 b2dd03c8-39d4-4d8f-98ff-823fe69b080e