12071 clarify implementation of single_instance in SMF services
Reviewed by: Robert Mustacchi <rm@fingolfin.org>

*** 38,48 ****
  
  
         single_instance
                            This is an optional property. When set, only one
                            instance of the service is allowed to transition to
!                           an online or degraded status at any time.
  
  
     Service Reporting
         All restarters report status using the restarter property group, which
         includes the following properties:
--- 38,50 ----
  
  
         single_instance
                            This is an optional property. When set, only one
                            instance of the service is allowed to transition to
!                           an online or degraded status at any time. Note that
!                           no known implementation honours this setting, and it
!                           should be considered obsolete.
  
  
     Service Reporting
         All restarters report status using the restarter property group, which
         includes the following properties:
*** 76,81 ****
  SEE ALSO
         svcs(1), svc.startd(1M), service_bundle(4), smf(5), smf_method(5)
  
  
  
!                                  May 23, 2008                 SMF_RESTARTER(5)
--- 78,83 ----
  SEE ALSO
         svcs(1), svc.startd(1M), service_bundle(4), smf(5), smf_method(5)
  
  
  
!                                December 11, 2019              SMF_RESTARTER(5)