Changes in version 1.11:

Pdlzip now reports an error if a file name is empty (pdlzip -t "").

Option '-o, --output' now behaves like '-c, --stdout', but sending the
output unconditionally to a file instead of to standard output. See the new
description of '-o' in the manual. This change is backwards compatible only
when (de)compressing from standard input alone. Therefore commands like:
  pdlzip -o foo.lz - bar < foo
must now be split into:
  pdlzip -o foo.lz - < foo
  pdlzip bar
or rewritten as:
  pdlzip - bar < foo > foo.lz

When using '-c' or '-o', pdlzip now checks whether the output is a terminal
only once.

Pdlzip now does not even open the output file if the input file is a terminal.

It is now an error to specify two different operations in the command line
(--decompress and --test).

The words 'decompressed' and 'compressed' have been replaced with the
shorter 'out' and 'in' in the verbose output when decompressing or testing.

The commands needed to extract files from a tar.lz archive have been
documented in the output of '--help' and in the man page.

9 new test files have been added to the testsuite.
