strip spaces for each value in host list lists (#67701)

changelogs/fragments/pathlist_strip.yml

@@ -0,0 +1,2 @@
+bugfixes:
+    - also strip spaces around config values in pathlist as we do in list types

lib/ansible/config/manager.py

@@ -137,7 +137,7 @@ def ensure_type(value, value_type, origin=None):
 
         elif value_type == 'pathlist':
             if isinstance(value, string_types):
-                value = value.split(',')
+                value = [x.strip() for x in value.split(',')]
 
             if isinstance(value, Sequence):
                 value = [resolve_path(x, basedir=basedir) for x in value]