Raise Exception in virtualbox inventory plugin

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

(cherry picked from commit 37293dec3d)

changelogs/fragments/virtualbox_inventory.yaml

@@ -0,0 +1,3 @@
+---
+minor_changes:
+- Raise AnsibleParserError which was missing previously

lib/ansible/plugins/inventory/virtualbox.py

@@ -250,7 +250,7 @@ class InventoryModule(BaseInventoryPlugin, Constructable, Cacheable):
             try:
                 p = Popen(cmd, stdout=PIPE)
             except Exception as e:
-                AnsibleParserError(to_native(e))
+                raise AnsibleParserError(to_native(e))
 
             source_data = p.stdout.read().splitlines()