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code/sm-gns/gns-api.c
code/sm-utils/cmd-utils.c
code/sm-utils/cmd-utils.h
code/ssc-cluster/cluster-api.h
code/ssc-cluster/cluster-contrl-cfg.c
code/ssc-cluster/cluster-gns-api.c
code/ssc-cluster/cluster-server-rpc.c
code/ssc-cluster/cluster-util.c
code/ssc-cluster/cluster-util.h
code/ssc-cluster/cluster-vsvr-api.c

Prerequisite for #23399 (clustering needs to restart apps when it gets a new
clusDb): Create a utility function apps can call to initiate a reboot, with
all of the appropriate notifications regarding the reason for the reboot.
Eliminate the function in clustering that does the same thing, incorrectly.

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