Update ICU to 58.1

source/data/rbnf/cy.txt

Index: source/data/rbnf/cy.txt
diff --git a/source/data/rbnf/cy.txt b/source/data/rbnf/cy.txt
index 941c15e5a1570896841fc5d4d84c0b7ae1a967d3..793e7a39d87ba0782d4c8ca2a80b4be7b7c03769 100644
--- a/source/data/rbnf/cy.txt
+++ b/source/data/rbnf/cy.txt
@@ -1,11 +1,5 @@
-// ***************************************************************************
-// *
-// * Copyright (C) 2015 International Business Machines
-// * Corporation and others. All Rights Reserved.
-// * Tool: org.unicode.cldr.icu.NewLdml2IcuConverter
-// * Source File: <path>/common/rbnf/cy.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 /**
  * ICU <specials> source: <path>/xml/rbnf/cy.xml
  */
@@ -15,7 +9,7 @@ cy{
             "%%lenient-parse:",
             "& ' ' , ',' ;",
             "%spellout-numbering-year:",
-            "x.x: =#,###0.#=;",
+            "x.x: =0.0=;",
             "0: =%spellout-numbering=;",
             "%spellout-numbering:",
             "0: =%spellout-cardinal-masculine=;",
@@ -113,5 +107,5 @@ cy{
             "1000000000000000000: =#,##0=;",
         }
     }
-    Version{"2.1.19.14"}
+    Version{"2.1.27.22"}
 }