osx 10.10 yosemite invoker launch plist

gistfile1.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>com.codemancers.invoker</string>
    <key>ProgramArguments</key>
    <array>
      <string>sh</string>
      <string>-c</string>
      <string>echo "rdr pass on lo0 inet proto tcp from any to any port 80 -> 127.0.0.1 port 23401
      rdr pass on lo0 inet proto tcp from any to any port 443 -> 127.0.0.1 port 23402" | pfctl -a 'com.apple/250.InvokerFirewall' -f - -E</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>UserName</key>
    <string>root</string>
  </dict>
</plist>