Update logrus from v0.8.7 to v1.0.5

This will fix building on SmartOS.
codeclimate · alyssais · Jun 28, 2018 · Jun 28, 2018 · Jun 28, 2018 · ac286237839715f025a641db393522224ee4d549
commit ac286237839715f025a641db393522224ee4d549
diff --git a/Gopkg.lock b/Gopkg.lock
diff --git a/vendor/github.com/Sirupsen/logrus/.travis.yml b/vendor/github.com/Sirupsen/logrus/.travis.yml
diff --git a/vendor/github.com/Sirupsen/logrus/CHANGELOG.md b/vendor/github.com/Sirupsen/logrus/CHANGELOG.md
diff --git a/vendor/github.com/Sirupsen/logrus/README.md b/vendor/github.com/Sirupsen/logrus/README.md
diff --git a/vendor/github.com/Sirupsen/logrus/alt_exit.go b/vendor/github.com/Sirupsen/logrus/alt_exit.go
diff --git a/vendor/github.com/Sirupsen/logrus/alt_exit_test.go b/vendor/github.com/Sirupsen/logrus/alt_exit_test.go
diff --git a/vendor/github.com/Sirupsen/logrus/appveyor.yml b/vendor/github.com/Sirupsen/logrus/appveyor.yml
diff --git a/vendor/github.com/Sirupsen/logrus/doc.go b/vendor/github.com/Sirupsen/logrus/doc.go