lapack/gonum: fix bug in Dlanv2
@@ -110,7 +110,7 @@ func (impl Implementation) Dlanv2(a, b, c, d float64) (aa, bb, cc, dd float64, r
dd = temp - p
cs1 := sab * tau
sn1 := sac * tau
- cs, sn = cs*cs1-sn*sn1, cs*sn1+sn+cs1
+ cs, sn = cs*cs1-sn*sn1, cs*sn1+sn*cs1
}
} else {
bb = -cc
