Add SPDX licence comments to files. See https://spdx.dev/learn/handling-license-info/ There have been cases when Echo code has been copied but copyright reference has been hard to find in these repos. With these comments it should easier to understand what parts derive from Echo. Assuming these are not removed - but in that case, this is out of our hands.
NB: year is 2015 as this is @vishr first commit year in this repo. copypright number does not need to be updated every year.
Add SPDX licence comments to files. See https://spdx.dev/learn/handling-license-info/ There have been cases when Echo code has been copied but copyright reference has been hard to find in these repos. With these comments it should easier to understand what parts derive from Echo. Assuming these are not removed - but in that case, this is out of our hands.
NB: year is 2015 as this is @vishr first commit year in this repo. copypright number does not need to be updated every year.