Correct help string of the subnet pool list options

Correct help string of subnet pool list options, from
"subnets" to "subnet pools".

Change-Id: Ic6dd6649f411748cd0c6e6b08f0451c8a0fa220f
Partially-Implements: blueprint network-commands-options

Author: yanxingan

doc/source/command-objects/subnet-pool.rst

@@ -121,23 +121,23 @@ List subnet pools
 
 .. option:: --share
 
-    List subnets shared between projects
+    List subnet pools shared between projects
 
 .. option:: --no-share
 
-    List subnets not shared between projects
+    List subnet pools not shared between projects
 
 .. option:: --default
 
-    List subnets used as the default external subnet pool
+    List subnet pools used as the default external subnet pool
 
 .. option:: --no-default
 
-    List subnets not used as the default external subnet pool
+    List subnet pools not used as the default external subnet pool
 
 .. option:: --project <project>
 
-    List subnets according to their project (name or ID)
+    List subnet pools according to their project (name or ID)
 
 .. option:: --project-domain <project-domain>
 
@@ -146,11 +146,11 @@ List subnet pools
 
 .. option:: --name <name>
 
-    List only subnets of given name in output
+    List only subnet pools of given name in output
 
 .. option:: --address-scope <address-scope>
 
-    List only subnets of given address scope (name or ID) in output
+    List only subnet pools of given address scope (name or ID) in output
 
 subnet pool set
 ---------------

openstackclient/network/v2/subnet_pool.py

@@ -238,40 +238,42 @@ def get_parser(self, prog_name):
         shared_group.add_argument(
             '--share',
             action='store_true',
-            help=_("List subnets shared between projects"),
+            help=_("List subnet pools shared between projects"),
         )
         shared_group.add_argument(
             '--no-share',
             action='store_true',
-            help=_("List subnets not shared between projects"),
+            help=_("List subnet pools not shared between projects"),
         )
         default_group = parser.add_mutually_exclusive_group()
         default_group.add_argument(
             '--default',
             action='store_true',
-            help=_("List subnets used as the default external subnet pool"),
+            help=_("List subnet pools used as the default external "
+                   "subnet pool"),
         )
         default_group.add_argument(
             '--no-default',
             action='store_true',
-            help=_("List subnets not used as the default external subnet pool")
+            help=_("List subnet pools not used as the default external "
+                   "subnet pool")
         )
         parser.add_argument(
             '--project',
             metavar='<project>',
-            help=_("List subnets according to their project (name or ID)")
+            help=_("List subnet pools according to their project (name or ID)")
         )
         identity_common.add_project_domain_option_to_parser(parser)
         parser.add_argument(
             '--name',
             metavar='<name>',
-            help=_("List only subnets of given name in output")
+            help=_("List only subnet pools of given name in output")
         )
         parser.add_argument(
             '--address-scope',
             metavar='<address-scope>',
-            help=_("List only subnets of given address scope (name or ID) "
-                   "in output")
+            help=_("List only subnet pools of given address scope "
+                   "(name or ID) in output")
         )
         return parser