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.