Problem: If 'endofline' is set the CTRL-Z may be written in the wrong
place.
Solution: Write CTRL-Z at the end of the file. Update the help to explain
the possibilities better. (Ken Takata, closes#11486)
Problem: Various inconsistencies in test files.
Solution: Add modelines where they were missing. Use Check commands instead
of silently skipping over tests. Adjust indents and comments.
(Ken Takata, closes#6695)
