wrap text file at 80th column; replace file with the wrapped version

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script: wraptext (download)
purpose: wrap text file at 80th column; replace file with the wrapped version
requires: standard GNU commands
version: 1.0
usage: wraptext [-hl] <file> [file...]
options: 
 

     -h, usage and options (this help)

     -l, see this script"