/* true and false builtins */#include "bashtypes.h"#include "shell.h"#include "builtins.h"true_builtin (list)     WORD_LIST *list;{  return EXECUTION_SUCCESS;}false_builtin (list)     WORD_LIST *list;{  return EXECUTION_FAILURE;}static char *true_doc[] = {	"Return a successful result.",	(char *)NULL};static char *false_doc[] = {	"Return an unsuccessful result.",	(char *)NULL};struct builtin true_struct = {	"true",	true_builtin,	BUILTIN_ENABLED,	true_doc,	"true",	0};struct builtin false_struct = {	"false",	false_builtin,	BUILTIN_ENABLED,	false_doc,	"false",	0};