* Added a generated CLI show command that works on the generated parse tree with auto completion.

* A typical call is: 	show @datamodel:example, cli_show_auto("candidate", "json");
  * The example contains a more elaborate example.
  * Thanks ngashok for request, see https://github.com/clicon/clixon/issues/24

apps/cli/cli_generate.c

@@ -141,6 +141,7 @@ cli_expand_var_generate(clicon_handle h,
  * @param[in]  ys  yang_stmt of the node at hand
  * @param[in]  cb0 The string where the result format string is inserted.
  * @see cli_dbxml  This is where the xmlkeyfmt string is used
+ * @see pt_callback_reference  in CLIgen where the actual callback overwrites the template
  */
 static int
 cli_callback_generate(clicon_handle h,