Done with: ack '2017+' -l | xargs sed -i -e 's/2017+/2018+/g' Checked manually with: git add -p Hello to future James from 2019, and Happy Hacking!
see https://github.com/purpleidea/mgmt/pull/256#issuecomment-346360414
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>