Fix spacing in include directives

Astyle doesn't change the spacing here, but make it consistent with
all the other files.

test/encoder/EncUT_EncoderExt.cpp

@@ -1,5 +1,5 @@
-#include<gtest/gtest.h>
-#include<stdlib.h>
+#include <gtest/gtest.h>
+#include <stdlib.h>
 #include "codec_api.h"
 #include "welsEncoderExt.h"
 
@@ -115,4 +115,4 @@ void EncoderInterfaceTest::TemporalLayerSettingTest() {
 
 TEST_F (EncoderInterfaceTest, TestTemporalLayerSetting) {
   TemporalLayerSettingTest();
-}
+}