src/share/classes/sun/text/resources/ko/FormatData_ko.java

*** 102,111 ****
--- 102,122 ----
                      "\ubaa9", // abb Thursday
                      "\uae08", // abb Friday
                      "\ud1a0" // abb Saturday
                  }
              },
+             { "DayNarrows",
+                 new String[] {
+                     "\uc77c",
+                     "\uc6d4",
+                     "\ud654",
+                     "\uc218",
+                     "\ubaa9",
+                     "\uae08",
+                     "\ud1a0",
+                 }
+             },
              { "AmPmMarkers",
                  new String[] {
                      "\uc624\uc804", // am marker
                      "\uc624\ud6c4" // pm marker
                  }