virt-manager/tests/cli-test-xml/compare/virtxml-edit-simple-serial.xml

--- Original XML
+++ Altered XML
@@ -187,7 +187,7 @@
       <protocol type="raw"/>
       <address type="ccid" controller="0" slot="3"/>
     </smartcard>
-    <serial type="null">
+    <serial type="pty">
       <target port="0"/>
     </serial>
     <serial type="tcp">

Domain 'test-many-devices' defined successfully.