libdeflate-gunzip: invalid option -- '-' Usage: libdeflate-gunzip [-LEVEL] [-cdfhkqtV] [-S SUF] FILE... Compress or decompress the specified FILEs. Options: -1 fastest (worst) compression -6 medium compression (default) -12 slowest (best) compression -c write to standard output -d decompress -f overwrite existing output files; (de)compress hard-linked files; allow reading/writing compressed data from/to terminal; with gunzip -c, pass through non-gzipped data -h print this help -k don't delete input files -q suppress warnings -S SUF use suffix SUF instead of .gz -t test file integrity -V show version and legal information