properly handle kprinting

Reference: /n/atom/patch/applied2013/glendakprint
Date: Thu Dec 26 18:34:45 CET 2013
Signed-off-by: quanstro@quanstro.net

--- /usr/glenda/bin/rc/riostart	Thu Dec 26 18:34:40 2013
+++ /usr/glenda/bin/rc/riostart	Thu Dec 26 18:34:40 2013
@@ -6,7 +6,7 @@
 
 window 0,0,161,117 stats -lmisce
 window 161,0,560,117 faces -i
-window -r 0 117 590 427 -scroll tail -f /dev/kmesg
+window -r 0 117 590 427 rc -c 'echo scroll>/dev/wctl; label kprint; tail -f /dev/kprint&'
 
 if(~ `{screensize} small)
 	dump=acme.dump.small