% pandoc -t mediawiki --wrap=preserve
* This is a list item.
* This is a list item in Markdown. It is
  continued in the next line.
    * It has a sub-item.
* This is the next list item.

A paragraph can span multiple lines
without being broken into pieces.
^D
* This is a list item.
* This is a list item in Markdown. It is continued in the next line.
** It has a sub-item.
* This is the next list item.

A paragraph can span multiple lines
without being broken into pieces.