child_process.fork: add string-shortcut for stdio
requested to merge github/fork/trendsetter37/feature/10793-add-string-variant-stdio-option into master
Add string-shortcut option for stdio parameter.
closes #10793 (closed)
Checklist
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make -j4 test(UNIX), orvcbuild test(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines
Affected core subsystem(s)
doc, child_process