fix unclosed delemiter

Author: gnzlbg

coresimd/aarch64/neon.rs

@@ -679,7 +679,7 @@ mod tests {
             -16, 6, 7, 5,
             8, 1, 1, 1,
             1, 1, 1, 1,
-        ))));
+        )))));
         assert_eq!(r, -16_i8);
     }