.IP \fB\-\-pidfile\fR
(Daemon mode only) Create a PID file in the given location. This is
used by the init system on Unix to keep track of the running daemon.
-Its parent directory must be writable by the user/group that we will
-run as!
+
+If necessary, its parent directory will be created with owner/group
+set to the appropriate user/group, but at most one directory will be
+created (that is, we won't create an entire directory tree).
Default: /run/htsn/htsn.pid