Update docs for sfContext_setActive

include/SFML/Window/Context.h

@@ -56,7 +56,7 @@ CSFML_WINDOW_API void sfContext_destroy(sfContext* context);
 /// \param context Context object
 /// \param active  sfTrue to activate, sfFalse to deactivate
 ///
-/// \return True on success, false on failure
+/// \return sfTrue on success, sfFalse on failure
 ///
 ////////////////////////////////////////////////////////////
 CSFML_WINDOW_API sfBool sfContext_setActive(sfContext* context, sfBool active);