revious versions.

The '--verbose' option used with '--test-label' provides additional
diagnostics.

Several volume labels may be specified in a command line, e.g.:

   tar --test-label -f archive 'My volume' 'New volume' 'Test volume'

In this case, tar exits with code 0 if any one of the arguments
matches the actual volume label.

** --label used with --update

The '--label' option can be used with '--update' to prevent accidental
update of an archive:

  tar -rf archive --label 'My volume' .

This did not work in previous versions, in spite of what the docs said.

** --record-size and --tape-length (-L) options

Usual size suffixes are allowed for these options.  For example,
-L10k stands for a 10 kilobyte tape length.

** Fix dead loop on extracting existing symlinks with the -k option.