Comment 11 for bug 15051

In reply to Steve Hollingsworth's comment:
"The idea advanced in this thread that the documentation be changed is a terrible one."

I disagree with you, this bug was open over a year ago and the option -P hasn't appeared, yet the option is documented as being available. I would really love to have the option -P in grep, but I understand that adding the option -P seems very hard, we are still waiting after one year, the only reasonable solution is that the option is removed from the documentation.

I can live with a tool that's lacking some options, in fact if you use different kinds of Linux/UNIX systems you will get used to check the man pages of every command as soon as you want to run a command with some esoteric arguments.

What I expect is that the documentation of a tool will list the options available. If grep can't have the option -P then it should at least be removed from the documentation.