hg: jdk/sandbox: 8246623: Remove minimum 4 digit requirement from Year.parse()

[chris.hegarty at oracle.com]

Changeset: 87828d2e32fe
Author:    naoto
Date:      2020-06-15 09:21 -0700
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/87828d2e32fe

8246623: Remove minimum 4 digit requirement from Year.parse()
Reviewed-by: lancea, rriggs, joehw

! src/java.base/share/classes/java/time/Year.java
! test/jdk/java/time/tck/java/time/TCKYear.java