rectify 'a extra specs' to 'an extra specs'
@@ -870,7 +870,7 @@ List NAS shares with filters.
Default=None.
``--extra-specs [<key=value> [<key=value> ...]], --extra_specs [<key=value> [<key=value> ...]]``
- Filters results by a extra specs key and value of
+ Filters results by an extra specs key and value of
share type that was used for share creation. OPTIONAL:
Default=None.
