Style Change: NULL->nullptr

tools/CrashHandler.cpp

Index: tools/CrashHandler.cpp
diff --git a/tools/CrashHandler.cpp b/tools/CrashHandler.cpp
index e26772b4ba9bc3c5183c0ea43709b42fec22e201..6707b65de44de21f89ecfaf45a5153f6163e5bde 100644
--- a/tools/CrashHandler.cpp
+++ b/tools/CrashHandler.cpp
@@ -150,10 +150,10 @@
                                GetCurrentThread(),
                                &frame,
                                c,
-                               NULL,
+                               nullptr,
                                SymFunctionTableAccess64,
                                SymGetModuleBase64,
-                               NULL)) {
+                               nullptr)) {
                 // Buffer to store symbol name in.
                 static const int kMaxNameLength = 1024;
                 uint8_t buffer[sizeof(IMAGEHLP_SYMBOL64) + kMaxNameLength];