Changes in version 0.7:

Match length limits set by options -1 to -9 have been changed to match
those of lzip 1.11.

A limit has been set on the number of packets produced by decompresor
worker threads to limit the amount of memory used.

Do not show the message "and `--stdout' was not specified" for file
types that can't be read (directories, etc).

A warning about fchown's return value being ignored has been fixed.