More debugging; do not use /dev/tty explicitly.

src/cmd/netfiles/main.c

@@ -231,6 +231,7 @@ plumbthread(void *v)
 	CFid *fid;
 	Plumbmsg *m;
 	
+	threadsetname("plumbthread");
 	fid = plumbopenfid("netfileedit", OREAD);
 	if(fid == nil){
 		fprint(2, "cannot open plumb/netfileedit: %r\n");
@@ -521,6 +522,7 @@ loopthread(void *v)
 {
 	QLock lk;
 	
+	threadsetname("loopthread");
 	qlock(&lk);
 	qlock(&lk);
 }
@@ -542,6 +544,8 @@ threadmain(int argc, char **argv)
 	if(argc)
 		usage();
 
+	cprint("netfiles starting\n");
+
 	threadnotify(nil, 0);	/* set up correct default handlers */
 
 	fmtinstall('E', eventfmt);

src/cmd/netfiles/netfilelib.rc

@@ -13,7 +13,7 @@ fn runsftp {
 		shift
 	}
 	if(! </dev/null dial 'unix!'^$ns/$1.sftp >[2]/dev/null){
-		sftpcache -D $1 >/dev/tty
+		sftpcache -D $1 </dev/null >[1=2]
 	}
 	{
 		if(! </dev/null dial 'unix!'^$ns/$1.sftp >[2]/dev/null){
@@ -23,7 +23,6 @@ fn runsftp {
 			{cat; echo DONE} | dial -e 'unix!'^$ns/$1.sftp
 		}
 	} >$t.sftp1 >[2=1]
-	sed 's/^/1 /' $t.sftp1
 	sed '/^sftp> /d
 		/^Connecting to /d
 		/^Fetching /d