Restart httpd for SMP

This is a coding example working on IRIS 2020.1 and on Caché 2018.1.3 
It will not be kept in sync with new versions      
It is also NOT serviced by InterSystems Support !   

If your Apache Server (httpd) to service the System Management Portal
doesn't run (anymore) for any reason then system administration can become
a hard job. In the case a restart of IRIS / Caché / Ensemble is NOT
possible this example might provide a workaround.
The only limit is the lack of enough privileges to start httpd.
( e.g with docker images)

Article in DC