doc: mention case-insensitive env on windows
Checklist
-
make -j8 test
(UNIX), orvcbuild test nosign
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines
Affected core subsystem(s)
doc
Description of change
On Windows OS, environment variables are case-insensitive and are treated likewise in NodeJS. This can be confusing and can lead to hard-to-debug problems when moving code from one environment to another.
Closes #9157 (closed)