ego, update copyright years

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, add -lm to LDADD to aid compilers that can't auto-emit the linkage

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'tool/gloom'

* tool/gloom:
  chore, add -lm to LDADD to aid compilers that can't auto-emit the linkage
  ego, update copyright years