Truth be told, it’s absolutely unnecessary to review “A Dog’s Way Home” (2019). It’s PG, CG and PC, a celebration of dogs, diversity and (melo)drama. If you like these kinds of wholesome movies, you’ll like this one no matter how exploitatively mediocre it is (hint, hint). If you’re film tastes are more artistic and/or cynical, you don’t need a review to tell you to pass on it. But anyway, a pit bull mutt puppy gets adopted, arrested, rescued, lost, re-adopted, etc., etc., with an avalanche and hapless animal control officer hijinks thrown in. It gives you exactly what you’d expect.