Tweaked the deprecation message and Scaladoc for the old names for orderings.
Tweaked the deprecation message and Scaladoc for the old names for orderings.

scalatest/scalatest,dotty-staging/scalatest,dotty-staging/scalatest,dotty-staging/scalatest,cheeseng/scalatest,scalatest/scalatest,cheeseng/scalatest,scalatest/scalatest,cheeseng/scalatest