Fixes file descriptor leak in standalone mode.

Prevents simultaneous calls to updatestat() as function is not reentrant.

PR:		bin/24857
Submitted by:	Martin Butkus <mb@bagheera.thgwf.de>
MFC after:	1 month

libexec/rpc.rstatd/rstat_proc.c

@@ -115,6 +115,7 @@ stat_init()
 {
     stat_is_init = 1;
     setup();
+    alarm(0);
     updatestat();
     (void) signal(SIGALRM, updatestat);
     alarm(1);
@@ -203,6 +204,7 @@ updatestat()
 #ifdef DEBUG
                 fprintf(stderr, "about to closedown\n");
 #endif
+		kvm_close(kd);
                 if (from_inetd)
                         exit(0);
                 else {