Login shell not invoked for zsh

[54keesh]

My default shell is zsh. After restore, login shells are not invoked rather only non login interactive shells are invoked. After giving code some look, i see that only bash is allowed login shells and no other shell.

I have created a PR for that, Kindly review and merge it into master or if any modifications needed, let me know, ill be more than willing to work upon that further