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chk: remove debug dumps, correct error message

--- a/chk.c

+++ b/chk.c

@@ -53,10 +53,8 @@

 	int i;

 	for(i = 0, p = okrange; i < nokrange; i += 2, p += 2)

-{print("check %#llux <= %#x <= %#llux\n", p[0], pc, p[1]);

 		if(p[0] <= pc && pc <= p[1])

 			return 1;

-}

 	return 0;

 }

@@ -82,10 +80,10 @@

 	for(; off != end; off++){

 		bits = seg->shadow[off>>2] >> (2*(off&3));

 		if((bits&chk) != chk && !okfunc(P->R[15]-4)){

-			if(chk&MARKALLOC)

+			if((bits&MARKALLOC) == 0)

 				print("%d: access outside alloc: %#x at PC %#x\n",

 					P->pid, seg->start+off, P->R[15] - 4);

-			if(chk&MARKINIT)

+			if((bits&MARKINIT) == 0)

 				print("%d: invalid read: %#x at PC %#x\n", 

 					P->pid, seg->start+off, P->R[15] - 4);

 			rendezvous(&never, nil);