From 23162ca1c6d891a9c5fe0e0fab1193cd54ed1b4f Mon Sep 17 00:00:00 2001
From: costan <costan@google.com>
Date: Tue, 10 Oct 2017 11:29:00 -0700
Subject: [PATCH] Fix typo (forgotten reference operator) in test.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=171708408
---
 db/fault_injection_test.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/db/fault_injection_test.cc b/db/fault_injection_test.cc
index 875dfe8..f8b2440 100644
--- a/db/fault_injection_test.cc
+++ b/db/fault_injection_test.cc
@@ -34,7 +34,7 @@ class FaultInjectionTestEnv;
 namespace {
 
 // Assume a filename, and not a directory name like "/foo/bar/"
-static std::string GetDirName(const std::string filename) {
+static std::string GetDirName(const std::string& filename) {
   size_t found = filename.find_last_of("/\\");
   if (found == std::string::npos) {
     return "";