change some error messages so the format string isn't the return value from gettext(); work around macos problem with gettext() in child processes; don't try to set tty state while running a trap; don't default to trying enable -f file if the shell is restricted; note that configure now supports --enable-year2038

parse.y

@@ -2807,7 +2807,7 @@ pop_alias:
   else if (uc == 0 && shell_input_line_terminator == READERR)
     {
 #if defined (FATAL_READERROR)
-      report_error (_("script file read error: %s"), strerror (errno));
+      report_error ("%s: %s", _("script file read error"), strerror (errno));
       exit_shell (128);		/* POSIX mandated error status */
 #else
       /* Treat read errors like EOF here. */