Merge pull request dotnet/corefx#24166 from hughbe/hatchbrush-fixes
authorEric Mellino <erme@microsoft.com>
Wed, 20 Sep 2017 19:29:24 +0000 (12:29 -0700)
committerGitHub <noreply@github.com>
Wed, 20 Sep 2017 19:29:24 +0000 (12:29 -0700)
Fix HatchBrush constructor validation, renable more passing tests on Unix

Commit migrated from https://github.com/dotnet/corefx/commit/aa1ff5efc54ee788687c8a912afe2937f4538858


Trivial merge