main: Make _check_path's argument explicit
main: Make _check_path's argument explicit

No functional change.

joshuarubin/dotfiles,joshuarubin/dotfiles,zsh-users/zsh-syntax-highlighting,P71/zsh-syntax-highlighting,phy1729/zsh-syntax-highlighting,x-way/zsh-syntax-highlighting,zsh-users/zsh-syntax-highlighting,x-way/zsh-syntax-highlighting,stuha/wbr-zsh,joshuarubin/dotfiles,P71/zsh-syntax-highlighting,phy1729/zsh-syntax-highlighting,joshuarubin/dotfiles