fix settling min/max for asymptotic systen · python-control/python-control@6e94302

Original file line number	Diff line number	Diff line change
`@@ -912,8 +912,8 @@ def step_info(sysdata, T=None, T_num=None, yfinal=None,`
`912`	`912`	`if settled < len(T):`
`913`	`913`	`settling_time = T[settled]`
`914`	`914`
`915`		`-settling_min = (yout[tr_upper_index:]).min()`
`916`		`-settling_max = (yout[tr_upper_index:]).max()`
	`915`	`+settling_min = min((yout[tr_upper_index:]).min(), InfValue)`
	`916`	`+settling_max = max((yout[tr_upper_index:]).max(), InfValue)`
`917`	`917`
`918`	`918`	`# Overshoot`
`919`	`919`	`y_os = (sgnInf * yout).max()`