Function fastly_sys::xqd_req_original_header_names_get

#[no_mangle]pub unsafe extern "C" fn xqd_req_original_header_names_get(
    buf: *mut u8, 
    buf_len: usize, 
    cursor: u32, 
    ending_cursor: *mut i64, 
    nwritten: *mut usize
) -> XqdStatus