disable lint check where we know it'd fail (#1286)

* disable lint check where we know it'd fail

one less noisy presubmit

* clang format

* remove ws

src/string_util.h

diff --git a/src/string_util.h b/src/string_util.h
index 8600ed7..d1c8840 100644
--- a/src/string_util.h
+++ b/src/string_util.h
@@ -40,6 +40,8 @@
 
 std::vector<std::string> StrSplit(const std::string& str, char delim);
 
+// Disable lint checking for this block since it re-implements C functions.
+// NOLINTBEGIN
 #ifdef BENCHMARK_STL_ANDROID_GNUSTL
 /*
  * GNU STL in Android NDK lacks support for some C++11 functions, including
@@ -56,6 +58,7 @@
 using std::stoi;
 using std::stoul;
 #endif
+// NOLINTEND
 
 }  // end namespace benchmark