mutt_expand_fmt (cmd, sizeof (cmd), editor, data);
mutt_expand_file_fmt (cmd, sizeof (cmd), editor, data);
void mutt_edit_file (const char *editor, const char *data){  char cmd[LONG_STRING];    endwin ();  mutt_expand_fmt (cmd, sizeof (cmd), editor, data);  mutt_system (cmd);  keypad (stdscr, TRUE);  clearok (stdscr, TRUE);}