archivers/lzip: Update to 1.23

This includes the following changes:

• Decompression time has been reduced by 5-12% depending on the file.
• In case of error in a numerical argument to a command line option, lzip now shows the name of the option and the range of valid values.
• Several descriptions have been improved in manual, '--help', and man page.
• The texinfo category of the manual has been changed to 'Compression' to match gzip.