Replace the placeholder Japanese era name in calendar.properties

There are no corresponding changes in upstream, however, still replacing
new era placeholder with actual era name for consistency.

Bug: 77858319
Test: CtsLibcoreTestCases
Test: CtsLibcoreOjTestCases
Change-Id: If231c253a7797776189fc9e87779a9d674984b55
Merged-In: If231c253a7797776189fc9e87779a9d674984b55
(cherry picked from commit 076d67b4d27783a0a575bc0651d3a3b6f53117ca)
diff --git a/ojluni/src/main/resources/calendars.properties b/ojluni/src/main/resources/calendars.properties
index 8ffee4c..6007d7a 100644
--- a/ojluni/src/main/resources/calendars.properties
+++ b/ojluni/src/main/resources/calendars.properties
@@ -29,14 +29,14 @@
 #   Taisho since 1912-07-30 00:00:00 local time (Gregorian)
 #   Showa  since 1926-12-25 00:00:00 local time (Gregorian)
 #   Heisei since 1989-01-08 00:00:00 local time (Gregorian)
-#   NewEra since 2019-05-01 00:00:00 local time (Gregorian)
+#   Reiwa  since 2019-05-01 00:00:00 local time (Gregorian)
 calendar.japanese.type: LocalGregorianCalendar
 calendar.japanese.eras: \
 	name=Meiji,abbr=M,since=-3218832000000;  \
 	name=Taisho,abbr=T,since=-1812153600000; \
 	name=Showa,abbr=S,since=-1357603200000;  \
 	name=Heisei,abbr=H,since=600220800000;   \
-	name=NewEra,abbr=N,since=1556668800000
+	name=Reiwa,abbr=R,since=1556668800000
 
 #
 # Taiwanese calendar