Minor nitpick: phosh --version should print out version and not launch regularly

I was just wondering what version of phosh I have currently installed, but it seems like phosh --version will still make phosh attempt to launch normally and get graphics access (with errors resulting if it is already running). Maybe it might be useful if the startup script for phosh that is called by "phosh" recognized that flag, and printed out the version of phosh. --help already appears to work, just --version doesn't.