From aa296fec74ac7781ac1f26df2b091e8b1afe38fd Mon Sep 17 00:00:00 2001
From: Craig Tiller <ctiller@google.com>
Date: Wed, 1 Mar 2017 14:16:53 -0800
Subject: [PATCH] Call the right function

---
 tools/run_tests/run_microbenchmark.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/run_tests/run_microbenchmark.py b/tools/run_tests/run_microbenchmark.py
index f72ec72dce..c1c8a488ae 100755
--- a/tools/run_tests/run_microbenchmark.py
+++ b/tools/run_tests/run_microbenchmark.py
@@ -235,7 +235,7 @@ for bm_name in args.benchmarks:
 if args.diff_perf:
   for bm_name in args.benchmarks:
     run_summary(bm_name, 'opt', '%s.new' % bm_name)
-  where_am_i = subprocess.check_call(['git', 'rev-parse', '--abbrev-ref', 'HEAD'])
+  where_am_i = subprocess.check_output(['git', 'rev-parse', '--abbrev-ref', 'HEAD'])
   subprocess.check_call(['git', 'checkout', args.diff_perf])
   comparables = []
   subprocess.check_call(['make', 'clean'])
-- 
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