Fix missing guard for "dircolors" initialization (#274)
Fix missing guard for "dircolors" initialization (#274)

The `config.zsh` script [1] of the `dircolors` package missed a guard
for systems where `dircolors` is not installed by default.
This caused an error on _ZSH_ startup and has been fixed in this commit
by adding a condition for the `eval` command.

[1]: https://github.com/arcticicestudio/igloo/blob/18b735009f2baa29e3bbe1323a1fc2082f88b393/snowblocks/zsh/pkgs/dircolors/config.zsh#L13

Fixes GH-273

Co-authored-by: Sven Greb <05134426bcd175050b08193c02f14ccdafcca088@svengreb.de>
arcticicestudio/igloo,arcticicestudio/igloo,arcticicestudio/igloo