Merge pull request #20 from robert-w-gries/feature/interface-allowed-vlan-fix

Idempotency fix for interface

Author: chrisvanheuveln

libraries/provider_cisco_interface.rb

@@ -130,6 +130,7 @@ def set_layer3_combo_properties
       def set_layer2_properties
         # Disable switchport
         set_switchport_mode
+        @new_resource.switchport_trunk_allowed_vlan.delete!(' ')
         prop_set([:access_vlan, :switchport_autostate_exclude,
                   :switchport_trunk_allowed_vlan, :switchport_trunk_native_vlan,
                   :switchport_vtp