hg: jdk9/dev/jdk: 8134928: java.time.Instant.truncatedTo(TemporalUnit unit) is truncating up if the year < 1970

[roger.riggs at oracle.com]

Changeset: 86713515444c
Author:    ntv
Date:      2015-10-20 13:10 -0400
URL:       http://hg.openjdk.java.net/jdk9/dev/jdk/rev/86713515444c

8134928: java.time.Instant.truncatedTo(TemporalUnit unit) is truncating up if the year < 1970
Reviewed-by: rriggs, scolebourne

! src/java.base/share/classes/java/time/Instant.java
! test/java/time/tck/java/time/TCKInstant.java