gl_code : add end of line.

Signed-off-by: Jae-Hyung Ahn <jerry.ahn@windriver.com>
diff --git a/opengl/tests/gl_jni/jni/gl_code.cpp b/opengl/tests/gl_jni/jni/gl_code.cpp
index 33b25ab..f031c79 100644
--- a/opengl/tests/gl_jni/jni/gl_code.cpp
+++ b/opengl/tests/gl_jni/jni/gl_code.cpp
@@ -180,4 +180,5 @@
 JNIEXPORT void JNICALL Java_com_android_gljni_GLJNILib_changeBackground(JNIEnv * env, jobject obj)
 {
     background = 1.0f - background;
-}
\ No newline at end of file
+}
+