[C++] Fix a typo in PR#48
diff --git a/strutil_test.cc b/strutil_test.cc
index d7290d1..7a5a47d 100644
--- a/strutil_test.cc
+++ b/strutil_test.cc
@@ -176,7 +176,7 @@
   }
   assert(ss.size() == 2LU);
   ASSERT_EQ(ss[0], "0123");
-  ASSERT_EQ(ss[1], "56789");
+  ASSERT_EQ(ss[1], "456789");
 }
 
 void TestFindEndOfLineInvalidAccess() {