Use --tabular for getfacl instead of -t shortcut

Hi!

Some systems do not support `-t` shortcut for `getfacl`. Red Hat 5.1 for instance outputs something like this:

```bash
$ getfacl --help
getfacl 2.2.39 -- get file access control lists
Usage: getfacl [-dRLPvh] file ...
      --access            display the file access control list only
  -d, --default           display the default access control list only
      --omit-header       do not display the comment header
      --all-effective     print all effective rights
      --no-effective      print no effective rights
      --skip-base         skip files that only have the base entries
  -R, --recursive         recurse into subdirectories
  -L, --logical           logical walk, follow symbolic links
  -P  --physical          physical walk, do not follow symbolic links
      --tabular           use tabular output format
      --numeric           print numeric user/group identifiers
      --absolute-names    don't strip leading '/' in pathnames
  -v, --version           print version and exit
  -h, --help              this help text
```

Thus cache permission task fails silently. Changing to full option name i.e. `--tabular` fixes the problem.

Thanks in advance.