Apply regular expression to get the onegate endpoint

[CarlosAndreo]

Expected Behavior

A regular expression must be applied to avoid selecting the first occurrence of ONEGATE_ENDPOINT = and select the correct occurrence.

Current Behavior

In phase zero of the toolkit installer to obtain the onegate endpoint the command command = “cat /etc/one/oned.conf | grep ‘ONEGATE_ENDPOINT =’” is applied, but it is not correct because there are different keys with the same name ONEGATE_ENDPOINT =