doc: edit man page for superfluous "node" usage
Rather than ponder "node" vs. "Node.js", remove the descriptor so it's just "command-line options" rather than "node command-line options" or "Node.js command-line options".
Checklist
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make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
documentation is changed or added -
commit message follows commit guidelines