Update code checks message (Azure#49166)

Author: m-redding

eng/scripts/CodeChecks.ps1

@@ -185,8 +185,8 @@ try {
             LogError `
 "Generated code is not up to date.`
     You may need to rebase on the latest main, `
-    run 'eng\scripts\Update-Snippets.ps1' if you modified sample snippets or other *.md files (https://github.com/Azure/azure-sdk-for-net/blob/main/CONTRIBUTING.md#updating-sample-snippets), `
-    run 'eng\scripts\Export-API.ps1' if you changed public APIs (https://github.com/Azure/azure-sdk-for-net/blob/main/CONTRIBUTING.md#public-api-additions). `
+    run 'eng\scripts\Update-Snippets.ps1 $ServiceDirectory' if you modified sample snippets or other *.md files (https://github.com/Azure/azure-sdk-for-net/blob/main/CONTRIBUTING.md#updating-sample-snippets), `
+    run 'eng\scripts\Export-API.ps1 $ServiceDirectory' if you changed public APIs (https://github.com/Azure/azure-sdk-for-net/blob/main/CONTRIBUTING.md#public-api-additions). `
     run 'dotnet build /t:GenerateCode' to update the generated code and samples.`
     `
 To reproduce this error locally, run 'eng\scripts\CodeChecks.ps1 -ServiceDirectory $ServiceDirectory'."