tree 5f7cc04484dc6bcc8526b1e46a6949e068c689f8
parent e050779de00a62fc16cf642f3f60cf4a1bc825e1
author Gary Gregory <garydgregory@gmail.com> 1610854287 -0500
committer Gary Gregory <garydgregory@gmail.com> 1610854287 -0500

Use isEmpty().