Command line Usage text, examples includes undocumented -ff and -fx

[tamlin-mike]

compressonator/applications/compressonatorcli/source/compressonatorcli.cpp

Line 358 in 0a45734

printf("compressonatorcli -fd BC7 -ff PNG -fx KTX ./source_dir/ ./dist_dir/\n");

Neither -ff nor -fx are included in the list of options.