Include the time portability header in GlogStyleFormatter.cpp
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

facebook/folly,facebook/folly,rklabs/folly,facebook/folly,Orvid/folly,Orvid/folly,facebook/folly,rklabs/folly,rklabs/folly,rklabs/folly,Orvid/folly,Orvid/folly,facebook/folly,Orvid/folly,rklabs/folly