Update include files to Unix newline format, per report from Magnus.

src/include/port/win32_msvc/sys/file.h

src/include/port/win32_msvc/sys/param.h

src/include/port/win32_msvc/sys/time.h

src/include/port/win32_msvc/unistd.h

src/include/port/win32_msvc/utime.h