Added a missing newline to a print statement

src/modules/graphics/opengl/Graphics.cpp

@@ -287,7 +287,7 @@ void Graphics::setDebug(bool enable)
 	glDebugMessageControl(GL_DEBUG_SOURCE_API, GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR, GL_DONT_CARE, 0, 0, GL_FALSE);
 	glDebugMessageControl(GL_DEBUG_SOURCE_SHADER_COMPILER, GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR, GL_DONT_CARE, 0, 0, GL_FALSE);
 
-	::printf("OpenGL debug output enabled (LOVE_GRAPHICS_DEBUG=1)");
+	::printf("OpenGL debug output enabled (LOVE_GRAPHICS_DEBUG=1)\n");
 }
 
 void Graphics::reset()