fix: Fix regression in partial commits for Firewall commits specifically (#625)

Author: adambaumeister

panos/firewall.py

@@ -622,9 +622,9 @@ def element(self):
                 ET.SubElement(partial, "shared-object").text = "excluded"
             if self.exclude_policy_and_objects:
                 ET.SubElement(partial, "policy-and-objects").text = "excluded"
-            fe.append(partial)
+            root.append(partial)
 
         if self.force:
-            fe = ET.SubElement(root, "force")
+            ET.SubElement(root, "force")
 
         return root