Homebrewは頻繁に変更されています。
$ brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry and just ignore them. Thanks!
Warning: Your Homebrew is outdated.
You haven't updated for at least 24 hours. This is a long time in brewland!
To update Homebrew, run `brew update`.
$
すぐこんなワーニングに出会うでしょう。
そんな時は、メッセージにもあるように呪文です。
$ brew update
今回は、Homebrewが更新され、新規と更新されたFormulaeがリストされました。
$ brew update
Updated Homebrew from 9f12f70e to e80e707e.
==> New Formulae
agda iojs libgxps pacvim
crystax-ndk juman mdk sblim-sfcc
galen libforensic1394 openwsman wsmancli
==> Updated Formulae
activemq git-cola openssl
aha git-ftp orientdb
arangodb github-release osquery
arping google-sparsehash osxfuse
ats2-postiats groovy p7zip
aws-elasticache groovysdk parallel
aws-elasticbeanstalk h2o pass
aws-sns-cli haproxy passenger
bison harfbuzz pius
boxes hh poco
bro horndis points2grid
bvi jenkins predictionio
byobu keybase pyenv-virtualenv
camlp4 ledger s3cmd
cgrep leiningen solid
clib lftp sqlite
cmake libav stunnel
commonmark libcouchbase swig
cookiecutter libjson-rpc-cpp syncthing
cpanminus libressl sysdig
csync libsoup terraform
deis llvm tinc
dnscrypt-proxy mackup vala
ec2-ami-tools mariadb vera++
ec2-api-tools mdp weechat
elb-tools monetdb wine
emscripten mpich2 winetricks
erlang mysql xa
exiftags nexus xplanetfx
f3 node yaws
fakeroot nspr youtube-dl
flow nsq zsh-completions
fsw nvm
fzf openh264
$