browse_logs should exit with an error message if you specify an unknown option...

I vaguely remembered that there was some sort of "grep" functionality in there, but I couldn't remember the option. I tried to start it with -? to see the help text (and some other options like --help, but I didn't try -h ). Instead of giving me a message that I used an illegal option it gave me 11MB of text output from the log

It would be nice if it just printed out that I used an illegal option just like ex ls does.