message: Fixed a test in ArgminDot impl of ndarray backend
diff: @@ -313,7 +313,7 @@ mod tests {
  Complex::new(2 as $t, 4 as $t),
  Complex::new(8 as $t, 4 as $t),
  ];
  - let res: Complex<$t> = a.dot(&b);
  + let res: Complex<$t> = <Array1<Complex<$t>> as ArgminDot<Array1<Complex<$t>>, Complex<$t>>>::dot(&a, &b);
  let target = a[0]*b[0] + a[1]*b[1] + a[2]*b[2];
  assert!((((res - target).re as f64).abs()) < std::f64::EPSILON);
  assert!((((res - target).im as f64).abs()) < std::f64::EPSILON);
  