[Docs CI] Fix the *.xml file generation command (Azure#4261)

* Fix the *.xml file generation command

* check the errorlevel of robocopy command

appveyor.yml

@@ -41,7 +41,7 @@ build_script:
       }
       $fileCommitMap | ConvertTo-Json | Out-File "$env:APPVEYOR_BUILD_FOLDER\doc\sphinx\doc_commit_map.json"
   - cd doc\sphinx 
-  - make xml
+  - make xmlwithversion
   - mkdir %TEMP%\azure-cli-xml2yml
   - cd %TEMP%\azure-cli-xml2yml
   - nuget install azure.cli.doc.xml2yml -Source https://ci.appveyor.com/nuget/azure-docs-cli-pre-process
@@ -70,6 +70,6 @@ on_success:
           }
       }
   - cd %TEMP%\azure-cli-content
-  - SETLOCAL EnableDelayedExpansion & robocopy %TEMP%\azure-cli-xml2yml\yml-output %TEMP%\azure-cli-content /e
+  - SETLOCAL EnableDelayedExpansion & robocopy %TEMP%\azure-cli-xml2yml\yml-output %TEMP%\azure-cli-content /e & IF !ERRORLEVEL! EQU 1 (exit 0) ELSE (IF !ERRORLEVEL! EQU 3 (exit 0) ELSE (exit 1))
   - git add -A
   - git diff --quiet --exit-code --cached || git commit -m "Update Document Content" && git push origin %TARGET_BRANCH% && appveyor AddMessage "Document Updated"