travis-ci/travis-build — pull request #175 by henrikhodne (2013-11-27 00:39:42+00:00)
Title: deploy: Add `true` as a valid key instead of `:on`

The YAML 'on: foo' is parsed into the Ruby hash '{true=>"foo"}'. We
call 'deep_symbolize_keys' on the hash, but boolean values are not
symbolized.

/cc @rkh