-/* FIXME:
-
- Available option letters are DEHIJQY and aenqy. Some are reserved:
-
- e exit immediately with a nonzero exit status if unexpected errors occur
- E use extended headers (draft POSIX headers, that is)
- I same as T (for compatibility with Solaris tar)
- n the archive is quickly seekable, so don't worry about random seeks
- q stop after extracting the first occurrence of the named file
- y per-file gzip compression
- Y per-block gzip compression */
-