<listitem>

<para>

Enables gzip compression of tar file output, and specifies the

compression level (1 through 9, 9 being best

compression level (0 through 9, 0 being no compression and 9 being best

compression). Compression is only available when using the tar

format.

</para>

break;

case'Z':

compresslevel=atoi(optarg);

if (compresslevel <=0||compresslevel>9)

if (compresslevel<0||compresslevel>9)

{

fprintf(stderr,_("%s: invalid compression level \"%s\"\n"),

progname,optarg);