Trivial: Rename subnet_pool.rst to subnet-pool.rst

File names under doc/source/command-objects/ are words connected
with "-". So rename subnet_pool.rst to subnet-pool.rst to keep
the consistence.

Also use "display" instead of "show" in the comment to keep the
consistence.

Change-Id: If486f6cec34b4572a8245af865267b063c1e877d

Author: Tang Chen

…c/source/command-objects/subnet_pool.rst …c/source/command-objects/subnet-pool.rstdoc/source/command-objects/subnet_pool.rst renamed to doc/source/command-objects/subnet-pool.rst doc/source/command-objects/subnet_pool.rst renamed to doc/source/command-objects/subnet-pool.rst

@@ -38,7 +38,7 @@ List subnet pools
 subnet pool show
 ----------------
 
-Show subnet pool details
+Display subnet pool details
 
 .. program:: subnet pool show
 .. code:: bash
@@ -49,4 +49,4 @@ Show subnet pool details
 .. _subnet_pool_show-subnet-pool:
 .. describe:: <subnet-pool>
 
-    Subnet pool to show (name or ID)
+    Subnet pool to display (name or ID)

openstackclient/network/v2/subnet_pool.py

@@ -99,14 +99,14 @@ def take_action(self, parsed_args):
 
 
 class ShowSubnetPool(command.ShowOne):
-    """Show subnet pool details"""
+    """Display subnet pool details"""
 
     def get_parser(self, prog_name):
         parser = super(ShowSubnetPool, self).get_parser(prog_name)
         parser.add_argument(
             'subnet_pool',
             metavar="<subnet-pool>",
-            help=("Subnet pool to show (name or ID)")
+            help=("Subnet pool to display (name or ID)")
         )
         return parser