RFR: JDK-8226848: jline/terminal/impl files missing classpath exception clause in license header

[Jan Lahoda]

Hi,

There is a handful of files in jdk.internal.le, that are missing the 
classpath exception. The patch herein is adding it.

Webrev: http://cr.openjdk.java.net/~jlahoda/8226848/webrev.00/
JBS: https://bugs.openjdk.java.net/browse/JDK-8226848

Does this look OK?

Thanks,
     Jan