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aux/listen1: write status to standard error

--- a/sys/src/cmd/aux/listen1.c

+++ b/sys/src/cmd/aux/listen1.c

@@ -105,7 +105,7 @@

 	if(!trusted)

 		becomenone();

-	print("listen started\n");

+	fprint(2, "listen started\n");

 	ctl = announce(argv[0], dir);

 	if(ctl < 0)

 		sysfatal("announce %s: %r", argv[0]);

@@ -166,7 +166,7 @@

 			exits("accept");

 		}

-		print("incoming call for %s from %s in %s\n", argv[0], remoteaddr(ndir), ndir);

+		fprint(2, "incoming call for %s from %s in %s\n", argv[0], remoteaddr(ndir), ndir);

 		for(i = 0; i < ncopts; i++)

 			write(nctl, copts[i], strlen(copts[i]));

@@ -181,7 +181,7 @@

 		dup(fd, 0);

 		dup(fd, 1);

 		/* dup(fd, 2); keep stderr */

-		close(fd);

+		if(fd > 2) close(fd);

 		exec(argv[1], argv+1);

 		if(argv[1][0] != '/')

 			exec(smprint("/bin/%s", argv[1]), argv+1);

-- 

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