In a try block such as:

  if expr:
    try:
      return
    finally
      print
  pass

the print happens before the return and cannot be followed by
pass. The general case is that when the body/else/handlers in a try
block all have return, break etc., the code behind finally: has no arc
to the statement following the try block.

close #493

When files are 100% covered and --skipped-covered is specified, they
must not be taken into account to format the text report. It is
specially useful when a long filename is skipped.