Corrected help text for alias command

Author: kmvanbrunt

CHANGELOG.md

@@ -1,7 +1,8 @@
 ## 2.0.0 (TBD, 2021)
 * Bug Fixes
   * Fixed issue where history indexes could get repeated
-  * Fixed issue where TableCreator was tossing blank last lines
+  * Fixed issue where TableCreator was tossing blank last line
+  * Corrected help text for alias command
 * Breaking Changes
     * `cmd2` 2.0 supports Python 3.6+ (removed support for Python 3.5)
     * Argparse Completion / Settables

cmd2/cmd2.py

@@ -3099,7 +3099,7 @@ def _alias_delete(self, args: argparse.Namespace) -> None:
         descriptive_header='Value',
     )
 
-    @as_subcommand_to('alias', 'list', alias_list_parser, help=alias_delete_help)
+    @as_subcommand_to('alias', 'list', alias_list_parser, help=alias_list_help)
     def _alias_list(self, args: argparse.Namespace) -> None:
         """List some or all aliases as 'alias create' commands"""
         tokens_to_quote = constants.REDIRECTION_TOKENS