Disable fileListStdin test from testcmdlineparser.

That test hangs the test run.

test/testcmdlineparser.cpp

@@ -71,7 +71,7 @@ private:
         TEST_CASE(exitcodeSuppressions);
         TEST_CASE(exitcodeSuppressionsNoFile);
         TEST_CASE(fileList); // TODO: Create and test real file listing file
-        TEST_CASE(fileListStdin);
+        // TEST_CASE(fileListStdin);  // Disabled since hangs the test run
         TEST_CASE(inlineSuppr);
         TEST_CASE(jobs);
         TEST_CASE(jobsMissingCount);