Don't fail on ctest writing to stderr

When passing -T to ask CTest to generate XML output, CTest complains
about a missing TCL file.  This causes the build steps to fail.  To
avoid that, make sure the ctest invocation is the last line in the
script so that its error status will be reported.

azure-pipelines.yml

@@ -31,8 +31,9 @@ jobs:
 
     - script: |
         ctest -j 4 --output-on-failure -T test
+
       workingDirectory: build
-      failOnStderr: true
+      failOnStderr: false
     - task: PublishTestResults@2
       inputs:
           testResultsFormat: cTest
@@ -101,10 +102,9 @@ jobs:
         cd build
         echo Copying objc.dll into Test directory...
         copy /y objc.dll Test
-        echo Running CTest...
         ctest -j 4 --output-on-failure -T test
-        echo CTest completed.
-      failOnStderr: true
+
+      failOnStderr: false
       displayName: 'Test'
 
     - task: PublishTestResults@2