RFR: JDK-8179889 Fix typographic errors in copyright headers

[Magnus Ihse Bursie]

Some of the copyright headers have minor problems. The most common one 
is not following the prescribed Oracle pattern of copyright year 
("<initial_change>, <last_change>, ").

Other errors seems to be the result of accidents in the editor, 
including search/replace gone wild ("LICENSE file" => "LICENSE 
randomAccessFile" :-)), or random edits.

Bug: https://bugs.openjdk.java.net/browse/JDK-8179889
WebRev: 
http://cr.openjdk.java.net/~ihse/JDK-8179889-fix-copyright-header-typos/webrev.01

/Magnus