extra newline in undefined instruction error

Reference: /n/sources/patch/applied/armuinstnl
Date: Fri Apr 16 05:11:09 CES 2010
Signed-off-by: quanstro@quanstro.net

--- /sys/src/9/kw/trap.c	Fri Apr 16 05:11:02 2010
+++ /sys/src/9/kw/trap.c	Fri Apr 16 05:11:00 2010
@@ -452,7 +452,7 @@
 			if(rv == 0){
 				ldrexvalid = 0;
 				snprint(buf, sizeof buf,
-					"undefined instruction: pc %#ux\n",
+					"undefined instruction: pc %#ux",
 					ureg->pc);
 				postnote(up, 1, buf, NDebug);
 			}