[13] RFR: 8205432: Replace the placeholder Japanese era name

[naoto . sato]

Hello,

Please review the fix to the following issue:
https://bugs.openjdk.java.net/browse/JDK-8205432

The CSR and the proposed changeset are located at:

https://bugs.openjdk.java.net/browse/JDK-8218207
http://cr.openjdk.java.net/~naoto/8205432/webrev.03/

The fix is simply to replace all the occurrences of the placeholder name 
"NewEra"/"元号" with "Reiwa"/"令和", which is the government declared era 
name.

Naoto