Whichman 2.4 - Fault tolerant search utilities.

Ftff, ftwhich and whichman are fault tolerant search utilities. whichman allows to search for man pages that match approximately the specified search key. ftff is a fault tolerant file find utility and ftwhich is a fault tolerant version for the 'which' command. The error tolerant approximate string match is based on the Levenshtein Distance between two strings. This is a measure for the number of replacements, insertions and deletions that are necessary to transform string A into string B.