TrivialFix in helpMessage for readability

Change-Id: Ic5fae89455470585f1bd79539f99a9c04e0c68a0

doc/source/command-objects/request-token.rst

@@ -24,7 +24,8 @@ Authorize a request token
 
 .. option:: --role <role>
 
-    Roles to authorize (name or ID) (repeat to set multiple values) (required)
+    Roles to authorize (name or ID)
+    (repeat option to set multiple values) (required)
 
 request token create
 --------------------

openstackclient/identity/v3/token.py

@@ -42,7 +42,7 @@ class AuthorizeRequestToken(command.ShowOne):
             default=[],
             required=True,
             help=_('Roles to authorize (name or ID) '
-                   '(repeat option to set multiple values, required)'),
+                   '(repeat option to set multiple values) (required)'),
         )
         return parser