Usage: /usr/bin/gencfu [-v] [-options] -r confusablesRules.txt -o output-file
	Read in Unicode confusable character definitions and write out the binary data
options:
	-h or -? or --help  this usage text
	-V or --version     show a version message
	-c or --copyright   include a copyright notice
	-v or --verbose     turn on verbose output
	-q or --quiet       do not display warnings and progress
	-i or --icudatadir  directory for locating any needed intermediate data files,
	                    followed by path, defaults to /usr/share/icu/79.1
	-d or --destdir     destination directory, followed by the path