Fix missing root slashes in `fzf` absolute path of plugin loader script (#291)
Fix missing root slashes in `fzf` absolute path of plugin loader script (#291)

The plugin loader script of the `polarbear` host was missing leading `/`
[2] in front of the two absolute fzf [2] paths that caused a plugin
loading error.

[1]: https://github.com/arcticicestudio/igloo/blob/18b73500/snowblocks/zsh/lib/plugins.polarbear.zsh#L13-L15
[2]: https://github.com/junegunn/fzf

Fixes GH-290
arcticicestudio/igloo,arcticicestudio/igloo,arcticicestudio/igloo