Add -v for race tests to avoid travis and appveyor timeouts. (#3647)

This is added so that CI's don't wrong fully timeout on
little longer running tests.

.travis.yml

@@ -14,7 +14,7 @@ env:
 
 script:
 - make
-- make test GOFLAGS="-race"
+- make test GOFLAGS="-race -v"
 - make coverage
 
 after_success:

appveyor.yml

@@ -35,8 +35,8 @@ test_script:
   # Unit tests
   - ps: Add-AppveyorTest "Unit Tests" -Outcome Running
   - mkdir build\coverage
-  - go test -timeout 15m -race github.com/minio/minio/cmd...
+  - go test -timeout 15m -v -race github.com/minio/minio/cmd...
-  - go test -race github.com/minio/minio/pkg...
+  - go test -v -race github.com/minio/minio/pkg...
   - go test -coverprofile=build\coverage\coverage.txt -covermode=atomic github.com/minio/minio/cmd
   - ps: Update-AppveyorTest "Unit Tests" -Outcome Passed