I'm getting this error on zsh 5.5.1 when trying to use `fbr` to change branches Here's the fix. If you can reproduce it I'll put up the PR. ``` fbr() { --format='%(refname:short)' )" || return - num_branches="$(wc -l <<< "$branches")" + num_branches="$(echo $(wc -l <<< "$branches") | xargs echo -n)" branch="$( echo "$branches" \ - | fzf-tmux -d "$((2 + "$num_branches"))" +m + | fzf-tmux -d "$((2 + $num_branches))" +m )" || return ```