brew upgrade で sbt 0.12.2 に

homebrew で sbt を 0.12.2 に更新

• brew update
• brew outdated
• brew upgrade

output

% brew update

% brew outdated
sbt (0.11.2, 0.11.3, 0.11.3-2, 0.12.0, 0.12.1 < 0.12.2)
% brew upgrade 
==> Upgrading sbt
==> Downloading http://typesafe.artifactoryonline.com/typesafe/ivy-releases/org.
######################################################################## 100.0%
==> Caveats
You can use $SBT_OPTS to pass additional JVM options to SBT.
For convenience, this can specified in `~/.sbtconfig`.

For example:
    SBT_OPTS="-XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256M"
==> Summary
/usr/local/Cellar/sbt/0.12.2: 3 files, 1.1M, built in 4 seconds