fix failing tests

Author: mkavulich

.github/workflows/pull_request_ci.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Run pylint
         run: |
-            pylint tools/**
+            pylint tools/**py
 
   validate-xml:
     name: Use xmlllint to validate the xml file against the schema file

standard_names.xml

@@ -3850,4 +3850,4 @@
       <type units="various">real</type>
     </standard_name>
   </section>
-</standard_names>
+</standard_names>