Update ICU to 58.1

source/data/locales/en_SG.txt

Index: source/data/locales/en_SG.txt
diff --git a/source/data/locales/en_SG.txt b/source/data/locales/en_SG.txt
index f974f89b7c89b437b3756cd114449431ce45d4e8..1462bf2a6c85e4f2aa9c28333ebb313a69f88bdd 100644
--- a/source/data/locales/en_SG.txt
+++ b/source/data/locales/en_SG.txt
@@ -1,14 +1,8 @@
-// ***************************************************************************
-// *
-// * Copyright (C) 2015 International Business Machines
-// * Corporation and others. All Rights Reserved.
-// * Tool: org.unicode.cldr.icu.NewLdml2IcuConverter
-// * Source File: <path>/common/main/en_SG.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 en_SG{
     %%Parent{"en_001"}
-    Version{"2.1.19.14"}
+    Version{"2.1.29.54"}
     calendar{
         generic{
             DateTimePatterns{
@@ -94,4 +88,55 @@ en_SG{
             }
         }
     }
+    fields{
+        month-short{
+            dn{"mth"}
+            relative{
+                "-1"{"last mth"}
+                "0"{"this mth"}
+                "1"{"next mth"}
+            }
+            relativeTime{
+                future{
+                    one{"in {0} mth"}
+                    other{"in {0} mth"}
+                }
+                past{
+                    one{"{0} mth ago"}
+                    other{"{0} mth ago"}
+                }
+            }
+        }
+        quarter-short{
+            relative{
+                "-1"{"last qtr"}
+                "0"{"this qtr"}
+                "1"{"next qtr"}
+            }
+            relativeTime{
+                future{
+                    one{"in {0} qtr"}
+                    other{"in {0} qtrs"}
+                }
+                past{
+                    one{"{0} qtr ago"}
+                    other{"{0} qtrs ago"}
+                }
+            }
+        }
+        week-short{
+            relative{
+                "-1"{"last wk"}
+                "0"{"this wk"}
+                "1"{"next wk"}
+            }
+        }
+        year-short{
+            relative{
+                "-1"{"last yr"}
+                "0"{"this yr"}
+                "1"{"next yr"}
+            }
+        }
+    }
 }