fs, src, lib: fix `blksize` & `blocks` on Windows
libuv returns values for blksize
and blocks
on stat calls so
do not coerce them into undefined
on Windows.
Fixes: https://github.com/nodejs/node/issues/25913
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
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