Use /o: when calling sonarscanner

Author: Michael Ganss

appveyor.yml

@@ -26,7 +26,7 @@ test_script:
   - ps: |
       if (-not $env:APPVEYOR_PULL_REQUEST_NUMBER) {
           dotnet tool install --global dotnet-sonarscanner
-          dotnet sonarscanner begin /k:"mganss_XmlSchemaClassGenerator" /v:$env:APPVEYOR_BUILD_VERSION /d:sonar.organization="mganss-github" /d:sonar.host.url="https://sonarcloud.io" /d:sonar.login="$env:sonar_token" /d:sonar.cs.opencover.reportsPaths="$($env:APPVEYOR_BUILD_FOLDER)\coverage.xml" /d:sonar.coverage.exclusions="**/Program.cs"
+          dotnet sonarscanner begin /k:"mganss_XmlSchemaClassGenerator" /v:$env:APPVEYOR_BUILD_VERSION /o:"mganss-github" /d:sonar.host.url="https://sonarcloud.io" /d:sonar.login="$env:sonar_token" /d:sonar.cs.opencover.reportsPaths="$($env:APPVEYOR_BUILD_FOLDER)\coverage.xml" /d:sonar.coverage.exclusions="**/Program.cs"
           dotnet build
       }
   - dotnet test /p:CollectCoverage=true /p:CoverletOutputFormat=opencover /p:CoverletOutput="..\coverage.xml" XmlSchemaClassGenerator.Tests\XmlSchemaClassGenerator.Tests.csproj /p:Exclude="[XmlSampleGenerator]*"