Add 2024 add a accept year number

Author: Kyle-Ye

.vscode/launch.json

@@ -0,0 +1,28 @@
+{
+    "configurations": [
+        {
+            "type": "lldb",
+            "request": "launch",
+            "sourceLanguages": [
+                "swift"
+            ],
+            "name": "Debug markdown-tool",
+            "program": "${workspaceFolder:swift-markdown}/.build/debug/markdown-tool",
+            "args": [],
+            "cwd": "${workspaceFolder:swift-markdown}",
+            "preLaunchTask": "swift: Build Debug markdown-tool"
+        },
+        {
+            "type": "lldb",
+            "request": "launch",
+            "sourceLanguages": [
+                "swift"
+            ],
+            "name": "Release markdown-tool",
+            "program": "${workspaceFolder:swift-markdown}/.build/release/markdown-tool",
+            "args": [],
+            "cwd": "${workspaceFolder:swift-markdown}",
+            "preLaunchTask": "swift: Build Release markdown-tool"
+        }
+    ]
+}

bin/check-source

@@ -2,7 +2,7 @@
 #
 # This source file is part of the Swift.org open source project
 #
-# Copyright (c) 2021 Apple Inc. and the Swift project authors
+# Copyright (c) 2021-2024 Apple Inc. and the Swift project authors
 # Licensed under Apache License v2.0 with Runtime Library Exception
 #
 # See https://swift.org/LICENSE.txt for license information
@@ -18,7 +18,7 @@ here="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 function replace_acceptable_years() {
     # this needs to replace all acceptable forms with 'YEARS'
-    sed -e 's/20[12][7890123]-20[12][890123]/YEARS/' -e 's/20[12][890123]/YEARS/'
+    sed -e 's/20[12][78901234]-20[12][8901234]/YEARS/' -e 's/20[12][8901234]/YEARS/'
 }
 
 printf "=> Checking for unacceptable language… "