src: use GetCurrentProcessId() for process.pid
Commit a9c0c65f ("src: define getpid() based on OS") made src/env.cc
use GetCurrentProcessId()
on Windows for the PID in log messages.
GetCurrentProcessId()
is also what is used by libuv, OpenSSL and V8.
This commit makes process.pid
use GetCurrentProcessId()
instead of
_getpid()
for consistency.
R=@cjihrig?