test/bench/shootout: fix build

Change-Id: Ic8ff6c28ec899cf5e01553b83110eb6262870995
Reviewed-on: https://go-review.googlesource.com/12918Reviewed-by: Russ Cox <rsc@golang.org>

test/bench/shootout/timing.sh

@@ -83,7 +83,7 @@ run() {
 			program=$(echo $1 | sed 's/gc //')
 			shift
 			echo $program
-			$1 <fasta-1000.out > /tmp/$$
+			$1 <fasta-1000.txt > /tmp/$$
 			case $program in
 			chameneosredux)
 				# exact numbers may vary but non-numbers should match