For binary packages see pandoc 1.15.

• Added pandoc.1 man page to the repository. It is no longer
  built as part of the cabal build process. (This proved too
  fragile.) pandoc.1 can be regenerated (make man/pandoc.1)
  when README is changed.
• Copying of the man page now respects --destdir (#2262).
• Improved error messages for filters. User is now informed if
  the filter requires an interpreter that isn't found in the path,
  or if the filter returns an error status.