#20 [4.1] Add command-line parameter that indicates the version

[Anonymous]

With more compressors than just gzip being supported now, scripts will need to know which version of the squashfs tools is installed in the system. I suggest to add a command-line parameter that indicates the version -- any of "-v", "-V", or "--version".

[Nobody/Anonymous]

BTW, indicating the version number seems appropriate for all kinds of screen output -- during file system creation, when showing the usage instructions ("mksquashfs --help"), etc.