Update ICU to 58.1

source/data/rbnf/my.txt

Index: source/data/rbnf/my.txt
diff --git a/source/data/rbnf/my.txt b/source/data/rbnf/my.txt
old mode 100755
new mode 100644
index f98f0701b47278c8d42691c71b600be80c32ab92..5795423988c3ddb05968f257b26141e6327bf3b8
--- a/source/data/rbnf/my.txt
+++ b/source/data/rbnf/my.txt
@@ -1,16 +1,10 @@
-// ***************************************************************************
-// *
-// * Copyright (C) 2015 International Business Machines
-// * Corporation and others. All Rights Reserved.
-// * Tool: org.unicode.cldr.icu.NewLdml2IcuConverter
-// * Source File: <path>/common/rbnf/my.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 my{
     RBNFRules{
         SpelloutRules{
             "%spellout-numbering-year:",
-            "x.x: =#,###0.#=;",
+            "x.x: =0.0=;",
             "0: =%spellout-cardinal=;",
             "%spellout-numbering:",
             "0: =%spellout-cardinal=;",
@@ -57,5 +51,5 @@ my{
             "11: =%spellout-cardinal=;",
         }
     }
-    Version{"2.1.19.14"}
+    Version{"2.1.27.22"}
 }