Auto merge of #1873 - alexcrichton:fix-transitive-activation, r=brson
authorbors <bors@rust-lang.org>
Mon, 3 Aug 2015 23:42:07 +0000 (23:42 +0000)
committerbors <bors@rust-lang.org>
Mon, 3 Aug 2015 23:42:07 +0000 (23:42 +0000)
When activating the feature `foo/bar` you're actually activating both the
feature `foo` and the `bar` feature of the relevant package. Cargo previously
forgot to activate the `foo` feature, and this commit fixes that up.

Closes #1871


Trivial merge