Martin von Zweigbergk <martinvonz@google.com> [Mon, 09 Dec 2019 10:44:42 -0800] rev 5004
evolve: remove dead initilization of "newnode" variable
It's been dead since f9dad99a90d5 (evolve: create a new commit instead
of amending one of the divergents, 2018-06-13).