rcpu: make sure not to leak /env/fn#server and /env/fn#aanserver for drawterm (thanks mischief)

rc/bin/rconnect

@@ -60,9 +60,9 @@ if(~ $filter aan){
 			rfork n
 			fn server {
 				echo -n aanserver $netdir >/proc/$pid/args
+				rm -f /env/^('fn#server' 'fn#aanserver')
 				. <{n=`{read} && ! ~ $#n 0 && read -c $n} >[2=1]
 			}
-			rm -f /env/^'fn#aanserver'
 			exec tlssrv -A /bin/rc -c server
 			exit
 		}

rc/bin/service/tcp17019

@@ -3,6 +3,7 @@ netdir=$3
 remote=$2!`{cat $3/remote}
 fn server {
 	echo -n $netdir $remote >/proc/$pid/args
+	rm -f /env/'fn#server'
 	. <{n=`{read} && ! ~ $#n 0 && read -c $n} >[2=1]
 }
 exec tlssrv -a /bin/rc -c server