src/pkg/bufio/bufio.go | 2 --

diff --git a/src/pkg/bufio/bufio.go b/src/pkg/bufio/bufio.go
index fc4127a9402b16f04804a2c766fd8268646cc543..c13456a6326b78ec9c3200d932cba7808d551578 100644
--- a/src/pkg/bufio/bufio.go
+++ b/src/pkg/bufio/bufio.go
@@ -148,7 +148,6 @@ 			if n > 0 {
 				b.lastByte = int(p[n-1])
 				b.lastRuneSize = -1
 			}
-			p = p[n:]
 			return n, b.err
 		}
 		b.fill()
@@ -161,7 +160,6 @@ 	if n > b.w-b.r {
 		n = b.w - b.r
 	}
 	copy(p[0:n], b.buf[b.r:])
-	p = p[n:]
 	b.r += n
 	b.lastByte = int(b.buf[b.r-1])
 	b.lastRuneSize = -1