RFR 9: 8169527 : Typo in getCalendarType() method of Chronology class

[Roger Riggs]

Please review editorial javadoc corrections in java.time.chrono.Chronology.

Webrev:
    http://cr.openjdk.java.net/~rriggs/webrev-typo-8169527/

Issue:
    https://bugs.openjdk.java.net/browse/JDK-8169527

Thanks, Roger