Tweak java.util classes to minimize diffs vs. upstream

All of these changes are minor. They fix minor needless
differences vs. upstream code. Some tweaks to Android-changed
documentation were also made.

"upstream" means OpenJDK8u121-b13, except for AbstractQueue,
whose upstream is the same as in http://r.android.com/316686
(a commit between jdk-9+113 and jdk-9+114).

 - AbstractMap:
   - Minor whitespace changes.
 - AbstractQueue:
   - Minor whitespace changes.
   - Tweaks to Android-changed docs.
 - Arrays:
   - tweak to rangeCheck() argument name and docs,
     missed in the update to OpenJDK8u60
   - Tweaks to Android-changed docs.
 - Base64:
   - avoid integer overflow, missed in the update
     to OpenJDK8u121-b13.
 - EnumMap:
   - Fixed copyright year change, missed in the
     update to OpenJDK8u60.
   - Minor whitespace change.
 - Hashtable:
   - Tweaks to Android-changed docs.
   - Minor whitespace changes.
 - List:
   - Removed empty documentation line.
 - TreeMap:
    - Dropped redundant "= null" initialization,
      consistent with upstream OpenJDK8u60 (this line
      still differs from upstream because of the rename
      Entry -> TreeMapEntry).
    - Tweaks to Android-changed docs.
 - Vector:
    - Minor whitespace change.

Bug: 35910877
Test: CtsLibcoreTestCases

Change-Id: Iaff5c5130e4ff32cbb28677d2fb8715d75d08a5e

0 files changed, 0 insertions, 0 deletions