fix regression from 45d88e3ef5f895b2fde77e3588f84d66e67bdd88#1207

Merged

kripken merged 1 commit intomasterfrom

Oct 2, 2017

Commits on Oct 2, 2017

fix regression from 45d88e3ef5f895b2fde77e3588f84d66e67bdd88 - left may not exist, need to return curr->left, after that change
kripken
committed