Swift: TSP message wording changes.

Co-authored-by: Isaac Brown <[email protected]>

Author: sashabu

swift/integration-tests/osx-only/autobuilder/failure/diagnostics.expected

@@ -2,7 +2,7 @@
   "helpLinks": [
     ""
   ],
-  "markdownMessage": "`autobuild` failed to run the detected build command:\n```\n/usr/bin/xcodebuild build -project <test-root-directory>/hello-failure.xcodeproj -target hello-failure CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED=NO\n```\n\nSet up a [manual build command][1] or [check the logs of the autobuild step][2].\n\n[1]: https://docs.github.com/en/enterprise-server/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-the-codeql-workflow-for-compiled-languages#adding-build-steps-for-a-compiled-language\n[2]: https://docs.github.com/en/actions/monitoring-and-troubleshooting-workflows/using-workflow-run-logs",
+  "markdownMessage": "`autobuild` failed to run the detected build command:\n\n```\n/usr/bin/xcodebuild build -project <test-root-directory>/hello-failure.xcodeproj -target hello-failure CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED=NO\n```\n\nSet up a [manual build command][1] or [check the logs of the autobuild step][2].\n\n[1]: https://docs.github.com/en/enterprise-server/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-the-codeql-workflow-for-compiled-languages#adding-build-steps-for-a-compiled-language\n[2]: https://docs.github.com/en/actions/monitoring-and-troubleshooting-workflows/using-workflow-run-logs",
   "severity": "error",
   "source": {
     "extractorName": "swift",