Fixes #292. * bin/man/spot.x, bin/spot.cc: Add missing cross references. * tests/sanity/bin.test: Add safety checks so we do not forget again.
Part of #292. * bin/man/spot.x, bin/spot.cc: Here.
Suggested by Akim Demaille. Fixes #171. * bin/man/spot.x, bin/spot.cc: New files. * bin/man/Makefile.am, bin/Makefile.am: Add them. * doc/org/tools.org, NEWS: Mention the new page.