src: add fcntl.h include to node.cc
PR https://github.com/nodejs/node/pull/11863 added _O_RDWR
to node.cc
which is defined in fcntl.h. This adds this include directly to node.cc
to prevent build fails like in https://github.com/nodejs/node/pull/12498
/cc @MylesBorins
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines
Affected core subsystem(s)
src