Wenn ich renne, brew doctor
bekomme ich die allgemeine Warnung:
Warning: You have unlinked kegs in your Cellar
Leaving kegs unlinked can lead to build-trouble and cause brews that depend on
those kegs to fail to run properly once built. Run `brew link` on these:
# [...]
Was bedeutet es, wenn die Fässer nicht verbunden sind? Und was brew link
genau macht das?