Identify who runs ChosLoc

doc/man/man5/slurm.conf.5

@@ -378,6 +378,8 @@ If configured, then any processes invoked on the user behalf (namely the
 SPANK prolog/epilog scripts and the slurmstepd processes, which in turn spawn
 the user batch script and applications) are not directly executed by the slurmd
 daemon, but instead the \fBChosLoc\fR program is executed.
+Both are spawned with the same user ID as the configured SlurmdUser
+(typically user root).
 That program's argument are the program and arguments that would otherwise be
 invoked directly by the slurmd daemon.
 The intent of this feature is to be able to run a user application in some