safe_realloc (&test_command, len);
rfc1524_expand_command (a, a->filename, type, test_command, len);
if (mutt_system (test_command)) {
safe_realloc (&test_command, len);
rfc1524_expand_command (a, a->filename, type, test_command, len);
if (mutt_system (test_command)) {