remove the extra space.

src/objective-c/tests/build_one_example.sh

@@ -49,7 +49,7 @@ if [ "$SCHEME" == "tvOS-sample" ]; then
     -derivedDataPath Build/Build \
     CODE_SIGN_IDENTITY="" \
     CODE_SIGNING_REQUIRED=NO \
-    CODE_SIGNING_ALLOWED=NO \ 
+    CODE_SIGNING_ALLOWED=NO \
     | $TEST_PATH/verbose_time.sh \
     | egrep -v "$XCODEBUILD_FILTER" \
     | egrep -v "^$" -