now host list removes trailing/leading spaces

othewise hostnames were just 'fun'

lib/ansible/plugins/inventory/advanced_host_list.py

@@ -61,6 +61,7 @@ class InventoryModule(BaseInventoryPlugin):
 
         try:
             for h in host_list.split(','):
+                h = h.strip()
                 if h:
                     try:
                         (hostnames, port) = self._expand_hostpattern(h)

lib/ansible/plugins/inventory/host_list.py

@@ -64,6 +64,7 @@ class InventoryModule(BaseInventoryPlugin):
 
         try:
             for h in host_list.split(','):
+                h = h.strip()
                 if h:
                     try:
                         (host, port) = parse_address(h, allow_ranges=False)