fixing missing string quotation in rather old code
fixing missing string quotation in rather old code

The history initialization code for cd = stack has not quoted the argument to pushd. Finally I mistyped the cd command argument to include '?' and that triggered the bug.

ibukanov/ahome,ibukanov/ahome,ibukanov/ahome,ibukanov/ahome,ibukanov/ahome,ibukanov/ahome,ibukanov/ahome,ibukanov/ahome,ibukanov/ahome