Include the time portability header in GlogStyleFormatter.cpp

Summary: It is needed on Windows for the `localtime_r` function.

Reviewed By: simpkins

Differential Revision: D5259944

fbshipit-source-id: e380ecf42252ecabec168cf87668ace3ff4c0a9f

folly/experimental/logging/GlogStyleFormatter.cpp

@@ -18,6 +18,7 @@
 #include <folly/Format.h>
 #include <folly/experimental/logging/LogLevel.h>
 #include <folly/experimental/logging/LogMessage.h>
+#include <folly/portability/Time.h>
 
 namespace {
 using folly::StringPiece;