Echo buildpack name as heroku's multi support says detect script must

mcollina / heroku-buildpack-graphicsmagick

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Echo buildpack name as heroku's multi support says detect script must #21

Closed benalavi closed 9 years ago

benalavi commented 9 years ago

Minor change to Heroku buildpack API requires the detect script to output something to stdout in order to work with Heroku's built-in multi-buildpack support.

From API doc (https://devcenter.heroku.com/articles/buildpack-api)

If the exit code is 0, the script must print a human-readable framework name to stdout.

Fixes #20