[Fix] add missing quotes for $NODE_VERSION in nvm-exec

[PeterDaveHello]

No description provided.

[ljharb]

Since NODE_VERSION has to be a proper semver single version number, is this something you've actually run into? Or is this just being careful?

If the latter, we might as well make one PR that quotes all mistakenly unquoted vars in the project.

[PeterDaveHello]

It's just being careful, and then we could try to let shellcheck involve in all the shellscripts.

[ljharb]

If the goal here is to shellcheck nvm-exec, let's make the change in the same commit.

[PeterDaveHello]

Mean to let shellcheck involve in?

[PeterDaveHello]

I'm not sure if you'll like to disable SC1090 here?

In nvm-exec line 5:
\. "$DIR/nvm.sh" --no-use
^-- SC1090: Can't follow non-constant source. Use a directive to specify location.

[ljharb]

yes, it should be disabled there just like it is in install.sh :-)

[PeterDaveHello]

Done, maybe you can just cancel the old builds :)

[PeterDaveHello]

Tests passed 👍