weird error on Mac OS X#9

Hello i tried init-dotfiles, but it doesn´t work correctly. here is the "log": ``` Welcome to the configuration generator for Dotbot Please be aware that if you have a complicated setup, you may need more customization than this script offers. At any time, press ^C to quit. No changes will be made until you confirm. ~/.dotfiles is not in use. Where do you want your dotfiles repository to be? (~/.dotfiles) Shall we add Dotbot as a submodule (a good idea)? (Y/n) Will do. Do you want Dotbot to clean ~/ of broken links added by Dotbot? (recommended) (Y/n) I will ask Dotbot to clean. I found ~/.bash_profile, do you want to Dotbot it? (Y/n) n Not added to Dotbot. I found ~/.gitconfig, do you want to Dotbot it? (Y/n) Dotbotted! I found ~/.ssh/config, do you want to Dotbot it? (Y/n) Dotbotted! I found ~/.tmux.conf, do you want to Dotbot it? (Y/n) Dotbotted! I found ~/.zshrc, do you want to Dotbot it? (Y/n) Dotbotted! expr: syntax error expr: syntax error expr: syntax error expr: syntax error expr: syntax error expr: syntax error expr: syntax error expr: syntax error expr: syntax error expr: syntax error expr: syntax error expr: syntax error Shall I run the installer? (Necessary to git commit) (Y/n) Will do. Shall I make the initial commit? (Y/n) Will do. ``` i am running init-dotfiles on a mac osx 10.10.3