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The ControlList::get(const Control<T> &ctrl) function has been modified in commit1c4d480185("libcamera: controls: Use std::optional to handle invalid control values") to return an std::optional<>, but its documentation wasn't updated. Fix it. Fixes:1c4d480185("libcamera: controls: Use std::optional to handle invalid control values") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>