travis.yml: format spacing to highlight test scheme
diff --git a/.travis.yml b/.travis.yml
index 4cdad37..c5ffd1e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,33 +8,34 @@
     - TEST=objc
     - JOBS=1
   matrix:
-    - SCHEME="RxLibraryUnitTests" WORKSPACE="Tests.xcworkspace"
-      TEST_PATH="src/objective-c/tests" BUILD_ONLY="false"
+    - SCHEME="RxLibraryUnitTests"
+      WORKSPACE="Tests.xcworkspace" TEST_PATH="src/objective-c/tests" BUILD_ONLY="false"
       INTEROP_SERVER="false"
-    - SCHEME="InteropTestsLocalSSL" WORKSPACE="Tests.xcworkspace"
-      TEST_PATH="src/objective-c/tests" BUILD_ONLY="false" INTEROP_SERVER="true"
-    - SCHEME="InteropTestsLocalCleartext" WORKSPACE="Tests.xcworkspace"
-      TEST_PATH="src/objective-c/tests"  BUILD_ONLY="false"
+    - SCHEME="InteropTestsLocalSSL"
+      WORKSPACE="Tests.xcworkspace" TEST_PATH="src/objective-c/tests" BUILD_ONLY="false"
+      INTEROP_SERVER="true"
+    - SCHEME="InteropTestsLocalCleartext"
+      WORKSPACE="Tests.xcworkspace" TEST_PATH="src/objective-c/tests"  BUILD_ONLY="false"
       INTEROP_SERVER="true"
     # TODO(jcanizales): Make tests an app project (instead of library), so the following will work.
-    # - SCHEME="InteropTestsRemote" WORKSPACE="Tests.xcworkspace"
-    #   TEST_PATH="src/objective-c/tests" BUILD_ONLY="false"
+    # - SCHEME="InteropTestsRemote"
+    #   WORKSPACE="Tests.xcworkspace" TEST_PATH="src/objective-c/tests" BUILD_ONLY="false"
     #   INTEROP_SERVER="true"
-    - SCHEME="HelloWorld" WORKSPACE="HelloWorld.xcworkspace"
-      TEST_PATH="examples/objective-c/helloworld" BUILD_ONLY="true"
+    - SCHEME="HelloWorld"
+      WORKSPACE="HelloWorld.xcworkspace" TEST_PATH="examples/objective-c/helloworld"
+      BUILD_ONLY="true" INTEROP_SERVER="false"
+    - SCHEME="RouteGuideClient"
+      WORKSPACE="RouteGuideClient.xcworkspace" TEST_PATH="examples/objective-c/route_guide"
+      BUILD_ONLY="true" INTEROP_SERVER="false"
+    - SCHEME="AuthSample"
+      WORKSPACE="AuthSample.xcworkspace" TEST_PATH="examples/objective-c/auth_sample"
+      BUILD_ONLY="true" INTEROP_SERVER="false"
+    - SCHEME="Sample"
+      WORKSPACE="Sample.xcworkspace" TEST_PATH="src/objective-c/examples/Sample" BUILD_ONLY="true"
       INTEROP_SERVER="false"
-    - SCHEME="RouteGuideClient" WORKSPACE="RouteGuideClient.xcworkspace"
-      TEST_PATH="examples/objective-c/route_guide" BUILD_ONLY="true"
-      INTEROP_SERVER="false"
-    - SCHEME="AuthSample" WORKSPACE="AuthSample.xcworkspace"
-      TEST_PATH="examples/objective-c/auth_sample" BUILD_ONLY="true"
-      INTEROP_SERVER="false"
-    - SCHEME="Sample" WORKSPACE="Sample.xcworkspace"
-      TEST_PATH="src/objective-c/examples/Sample" BUILD_ONLY="true"
-      INTEROP_SERVER="false"
-    - SCHEME="SwiftSample" WORKSPACE="SwiftSample.xcworkspace"
-      TEST_PATH="src/objective-c/examples/SwiftSample" BUILD_ONLY="true"
-      INTEROP_SERVER="false"
+    - SCHEME="SwiftSample"
+      WORKSPACE="SwiftSample.xcworkspace" TEST_PATH="src/objective-c/examples/SwiftSample"
+      BUILD_ONLY="true" INTEROP_SERVER="false"
 before_install:
   # Until Travis upgrades from Cocoapods 0.39, we need to do it here.
   - pod --version