add exploit for CVE-2011-1485
typo
Use Rex.sleep :-)

"Right is right even if no one is doing it; wrong is wrong even if everyone is doing it"

user@x:/opt/metasploit$ grep -nr "select(nil, nil, nil" . | wc -l
189
user@x:/opt/metasploit$ grep -nr "Rex.sleep" . | wc -l
25
Land #3944, pkexec exploit