Document Password generation for password containing $

[sbordet]

Jetty version(s)
12.1.x

Description
The documentation for the Password tool should be improved to avoid mistakes related to generating password that contain special characters such as $ on the command line.

For example:

$ java -jar jetty-util.jar org.eclipse.jetty.util.security.Password user A1$B2

The shell would interpret $B2 as a variable, which likely does not exist, therefore the password is only A1.

The correct syntax would be:

$ java -jar jetty-util.jar org.eclipse.jetty.util.security.Password 'user' 'A1$B2'