Add the pattern in "*-pattern" rule messages

[omril321]

What is the problem you're trying to solve?

Some *-pattern rules do not print the pattern on their messages. This may be confusing the the users, since they may not may which pattern they must follow.

What solution would you like to see?

As mentioned on #4962 (comment), *-pattern rules should specify the pattern on their messages. For example:
Expected custom media query name to match specified pattern *<pattern goes here>*

The *-pattern rules I've found which do not specify the pattern are:

1. custom-media-pattern
2. custom-property-pattern
3. keyframes-name-pattern
4. selector-class-pattern
5. selector-id-pattern
6. selector-nested-pattern