Updated documentation

Author: kmvanbrunt

cmd2/cmd2.py

@@ -2829,7 +2829,7 @@ def complete_set_value(self, text: str, line: str, begidx: int, endidx: int,
         # Create a parser with a value field based on this settable
         settable_parser = DEFAULT_ARGUMENT_PARSER(parents=[Cmd.set_parser_parent])
 
-        # Settables that populate choices have the values of those choices overwrite the arg name
+        # Settables with choices list the values of those choices instead of the arg name
         # in help text and this shows in tab-completion hints. Set metavar to avoid this.
         arg_name = 'value'
         settable_parser.add_argument(arg_name, metavar=arg_name, help=settable.description,