fixes elif bug.

git-svn-id: http://skia.googlecode.com/svn/trunk@5114 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/bench_util.py b/bench/bench_util.py
index 62b1e29..3b150a0 100644
--- a/bench/bench_util.py
+++ b/bench/bench_util.py
@@ -89,7 +89,7 @@
                     iter_len = len(iters)
                     if representative == 'avg':
                         rep = sum(iters) / iter_len
-                    if representative == 'min':
+                    elif representative == 'min':
                         rep = iters[0]
                     elif representative == 'med':
                         if iter_len % 2: