The actual fix as been done by "pkglint -F */*/buildlink3.mk", and was
reviewed manually.
There are some .include lines that still are indented with zero spaces
although the surrounding .if is indented. This is existing practice.
myself for wip, tested by Thomas Schmitt and Freddy Fisker.
libisofs is a library to create an ISO-9660 filesystem with extensions
like RockRidge or Joliet. It is also a full featured ISO-9660
editor, allowing you to modify an ISO image or multisession disc,
including file addition/removal, change of file names and attributes,
etc.