Auto merge of #4702 - mathstuf:update-lockfile-switch-colors, r=alexcrichton
authorbors <bors@rust-lang.org>
Tue, 7 Nov 2017 20:46:45 +0000 (20:46 +0000)
committerbors <bors@rust-lang.org>
Tue, 7 Nov 2017 20:46:45 +0000 (20:46 +0000)
cargo_generate_lockfile: flip Updating and Adding colors

Updating is green elsewhere and is more common as well.

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Cc: @alexcrichton

Trivial merge