Exit with err 8 if pid file not writable after forking.

ChangeLog

@@ -10,6 +10,7 @@ Version NEXT
 	make sure that our descriptor for running in inetd is not 0 to 2,
 	  because we closing these later. This should help systemd internal
 	  inetd to work correctly using fspd socket activation.
+	fspd exits with err 8 if can't write pidfile after forking
 
 Version 2.8.1b29 - 24 Aug 2019
 	added scons command line argument without-fspscan=yes for building

server/main.c

@@ -374,7 +374,7 @@ int main (int argc, char ** argv)
       if (forkpid == 0) { /* child prozess */
 	if (pidfile(pidlogname)) {
           pidfile_cleanup(pidlogname); /* try cleanup */
-	  exit(1);/* cannot write pid file - exit */
+	  exit(8);/* cannot write pid file - exit */
 	}
       } else if (forkpid > 0) { /* father prozess */
 	_exit(0);