CSR review request JDK-8233621, Mismatch in jsse.enableMFLNExtension property name

[Xuelei Fan]

Hi,

May I have the CSR reviewed?
   https://bugs.openjdk.java.net/browse/JDK-8233652
The system property, "jsse.enableMFLNExtension", was introduced in JDK 9 
(See JSSE Reference Guides). However, the implementation code uses 
"jsse.enableMFLExtension" (without 'N') instead.

As the system property may have been used in practice, it may be better 
to change the CSR and doc accordingly.

Thanks,
Xuelei