clang tidy warnings

include/benchmark/benchmark.h

diff --git a/include/benchmark/benchmark.h b/include/benchmark/benchmark.h
index 3b20153..a67a24e 100644
--- a/include/benchmark/benchmark.h
+++ b/include/benchmark/benchmark.h
@@ -171,7 +171,6 @@
 #include <cassert>
 #include <cstddef>
 #include <functional>
-#include <initializer_list>
 #include <iosfwd>
 #include <limits>
 #include <map>

src/re.h

diff --git a/src/re.h b/src/re.h
index af4b8bb..1486dd8 100644
--- a/src/re.h
+++ b/src/re.h
@@ -15,6 +15,8 @@
 #ifndef BENCHMARK_RE_H_
 #define BENCHMARK_RE_H_
 
+#include <vector>
+
 #include "internal_macros.h"
 
 // clang-format off