The output of the step_info is wrong, after apply minreal the output is right



```
import control as ctrl

T=ctrl.tf([ 5.3998   , 10.7161216, 27.6062153,  8.4159075,  0.       ],[ 5.684    , 22.079728 , 55.8912172, 74.7874022, 44.4380303, 8.4159075,  0. ])
print(T)

Tmin=ctrl.minreal(T)
print(Tmin)

#%%
info=ctrl.step_info(T,SettlingTimeThreshold=0.02)
print(info)

info_min=ctrl.step_info(Tmin,SettlingTimeThreshold=0.02)
print(info_min)
```