Add missed CHANGELOG entry for #2897
Add missed CHANGELOG entry for #2897

[skipci]

dipinhora/ponyc,kulibali/ponyc,sgebbie/ponyc,sgebbie/ponyc,kulibali/ponyc,CausalityLtd/ponyc,jemc/ponyc,kulibali/ponyc,CausalityLtd/ponyc,Theodus/ponyc,cquinn/ponyc,cquinn/ponyc,ponylang/ponyc,Theodus/ponyc,Theodus/ponyc,ponylang/ponyc,sgebbie/ponyc,ponylang/ponyc,Theodus/ponyc,cquinn/ponyc,jemc/ponyc,dipinhora/ponyc,cquinn/ponyc,sgebbie/ponyc,Theodus/ponyc,kulibali/ponyc,jemc/ponyc,dipinhora/ponyc,sgebbie/ponyc,CausalityLtd/ponyc