o put examples into ${PREFIX}/share/examples/xspread
o remove unnecessary build documentation from PLIST
o use ${MASTER_SITE_OPENBSD} since the original ftp server refuses
anonymous connections
o add comment about license
o regen patches with update-patches
Porters: please make sure you use bsd.port.mk 1.75 or later when
updating ports. That version of the makefile adds all sums. Previous
versions of the makefile will still work for people installing ports.