Drop instance element and update yaml path syntax

Author: yuumasato

tests/probes/yamlfilecontent/test_probes_yamlfilecontent.xml

@@ -68,36 +68,31 @@
     <ind-def:yamlfilecontent_object version="1" id="oval:0:obj:1">
       <ind-def:path>/tmp</ind-def:path>
       <ind-def:filename>openshift-logging.yaml</ind-def:filename>
-      <ind-def:yamlpath>/kind</ind-def:yamlpath>
-      <ind-def:instance operation="greater than or equal" datatype="int">0</ind-def:instance>
+      <ind-def:yamlpath>.kind</ind-def:yamlpath>
     </ind-def:yamlfilecontent_object>
 
     <ind-def:yamlfilecontent_object version="1" id="oval:0:obj:2">
       <ind-def:path>/tmp</ind-def:path>
       <ind-def:filename>openshift-logging.yaml</ind-def:filename>
-      <ind-def:yamlpath>/metadata/namespace</ind-def:yamlpath>
-      <ind-def:instance operation="greater than or equal" datatype="int">0</ind-def:instance>
+      <ind-def:yamlpath>.metadata.namespace</ind-def:yamlpath>
     </ind-def:yamlfilecontent_object>
 
     <ind-def:yamlfilecontent_object version="1" id="oval:0:obj:3">
       <ind-def:path>/tmp</ind-def:path>
       <ind-def:filename>openshift-logging.yaml</ind-def:filename>
-      <ind-def:yamlpath>/spec/outputs[type=forward]/name</ind-def:yamlpath>
-      <ind-def:instance operation="greater than or equal" datatype="int">0</ind-def:instance>
+      <ind-def:yamlpath>.spec.outputs[type=forward].name</ind-def:yamlpath>
     </ind-def:yamlfilecontent_object>
 
     <ind-def:yamlfilecontent_object version="1" id="oval:0:obj:4">
       <ind-def:path>/tmp</ind-def:path>
       <ind-def:filename>openshift-logging.yaml</ind-def:filename>
-      <ind-def:yamlpath>/spec/outputs[type=elasticsearch]/name</ind-def:yamlpath>
-      <ind-def:instance operation="greater than or equal" datatype="int">0</ind-def:instance>
+      <ind-def:yamlpath>.spec.outputs[type=elasticsearch].name</ind-def:yamlpath>
     </ind-def:yamlfilecontent_object>
 
     <ind-def:yamlfilecontent_object version="1" id="oval:0:obj:5">
       <ind-def:path>/tmp</ind-def:path>
       <ind-def:filename>openshift-logging.yaml</ind-def:filename>
-      <ind-def:yamlpath>/spec/outputs[type=elasticsearch]</ind-def:yamlpath>
-      <ind-def:instance operation="greater than or equal" datatype="int">0</ind-def:instance>
+      <ind-def:yamlpath>.spec.outputs[type=elasticsearch]</ind-def:yamlpath>
     </ind-def:yamlfilecontent_object>
 
   </objects>