|A wrapped line follows:|.
|123456789012345678901234567890123456789012345678901234567890123456789012345|-
-|678|.
|Pipe: ||.
|Trailing spaces:   |.
|CRLF pair|
. CR/^M LF/^J
|CR only|
. CR/^M
|Blank line follows:|.
||.
|Missing newline|
