Ignore errors from "svn upgrade" in unit tests

Summary: See discussion in D6893. Different versions of `svn` do different stuff, just ignore any possible error here.

Test Plan: Ran unit tests.

Reviewers: andrewjcg, btrahan

Reviewed By: andrewjcg

CC: aran

Differential Revision: https://secure.phabricator.com/D6946
Correct capitalization of "new" in lint

Summary: Automatically correct `New` to `new` in lint.

Test Plan: Ran unit tests.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D6948