Documentation: fix minor gamecontroller parameter warning
diff --git a/include/SDL_gamecontroller.h b/include/SDL_gamecontroller.h
index 342d94f..3fd0527 100644
--- a/include/SDL_gamecontroller.h
+++ b/include/SDL_gamecontroller.h
@@ -422,7 +422,7 @@ extern DECLSPEC SDL_bool SDLCALL SDL_GameControllerHasLED(SDL_GameController *ga
/**
* Update a controller's LED color.
*
- * \param controller The joystick to update
+ * \param gamecontroller The joystick to update
* \param red The intensity of the red LED
* \param green The intensity of the green LED
* \param blue The intensity of the blue LED