Update ICU to 58.1

source/data/locales/de_AT.txt

Index: source/data/locales/de_AT.txt
diff --git a/source/data/locales/de_AT.txt b/source/data/locales/de_AT.txt
index e62fc239f4f5b30e59fc6c57c610fb9084f9b3dd..9b106f88a2260e65de763c2b1c6229d8a9bd8337 100644
--- a/source/data/locales/de_AT.txt
+++ b/source/data/locales/de_AT.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/main/de_AT.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 de_AT{
     ExemplarCharactersIndex{"[A Ä B C D E F G H I J K L M N O Ö P Q R S T U Ü V W X Y Z]"}
     NumberElements{
@@ -14,13 +8,22 @@ de_AT{
                 currencyFormat{"¤ #,##0.00"}
             }
             symbols{
+                currencyGroup{"."}
                 group{" "}
             }
         }
     }
-    Version{"2.1.19.14"}
+    Version{"2.1.28.73"}
     calendar{
         gregorian{
+            dayPeriod{
+                stand-alone{
+                    narrow{
+                        am{"vm."}
+                        pm{"nm."}
+                    }
+                }
+            }
             monthNames{
                 format{
                     abbreviated{