//usage: "[-opts[modifiers]] FILE[.zip] [LIST] [-x XLIST] [-d DIR]"
//usage:#define unzip_full_usage "\n\n"
//usage: "Extract files from ZIP archives\n"
-//usage: "\nOptions:"
//usage: "\n -l List archive contents (with -q for short form)"
//usage: "\n -n Never overwrite files (default)"
//usage: "\n -o Overwrite"