// CmdImport creates an empty filesystem image, imports the contents of the tarball into the image, and optionally tags the image.
//
// The URL argument is the address of a tarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) file. If the URL is '-', then the tar file is read from STDIN.
cmd:=cli.Subcmd("import",[]string{"URL|- [REPOSITORY[:TAG]]"},"Create an empty filesystem image and import the contents of the\ntarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) into it, then\noptionally tag it.",true)