formatting: Welcome to the sprintf club, MSVC 2015. Fixes #1337.
formatting: Welcome to the sprintf club, MSVC 2015. Fixes #1337.

dch/factor,tgunr/factor,factor/factor,bpollack/factor,mrjbq7/factor,nicolas-p/factor,tgunr/factor,factor/factor,mrjbq7/factor,dch/factor,mrjbq7/factor,bjourne/factor,bjourne/factor,slavapestov/factor,factor/factor,mrjbq7/factor,AlexIljin/factor,nicolas-p/factor,dch/factor,AlexIljin/factor,nicolas-p/factor,bpollack/factor,AlexIljin/factor,dch/factor,slavapestov/factor,bjourne/factor,dch/factor,slavapestov/factor,nicolas-p/factor,tgunr/factor,bpollack/factor,tgunr/factor,bjourne/factor,AlexIljin/factor,AlexIljin/factor,factor/factor,bpollack/factor,AlexIljin/factor,slavapestov/factor,bjourne/factor,nicolas-p/factor,bjourne/factor,bpollack/factor,AlexIljin/factor,slavapestov/factor,bjourne/factor,slavapestov/factor,factor/factor,mrjbq7/factor,nicolas-p/factor,bpollack/factor,mrjbq7/factor,factor/factor,nicolas-p/factor,bpollack/factor,tgunr/factor,slavapestov/factor,dch/factor,tgunr/factor