doc(wiki): If permissions error, please try and then the command.

Author: cclauss

Updating-npm's-bundled-node-gyp.md

@@ -16,20 +16,22 @@ We need to start by knowing your version of `npm`:
 npm --version
 ```
 
-## Linux, Mac OS X, Solaris, etc.
+## Linux, macOS, Solaris, etc.
 
-Unix is easy. Just run the following command. Use `sudo` if necessary.
+Unix is easy. Just run the following command.
 
 If your npm is version ___7___, do:
 ```bash
-$ [sudo] npm explore npm/node_modules/@npmcli/run-script -g -- npm_config_global=false npm install node-gyp@latest
+$ npm explore npm/node_modules/@npmcli/run-script -g -- npm_config_global=false npm install node-gyp@latest
 ```
 
 Else if your npm is version ___less than 7___, do:
 ```bash
-$ [sudo] npm explore npm/node_modules/npm-lifecycle -g -- npm install node-gyp@latest
+$ npm explore npm/node_modules/npm-lifecycle -g -- npm install node-gyp@latest
 ```
 
+If the command fails with a permissions error, please try `sudo` and then the command.
+
 ## Windows
 
 Windows is a bit trickier, since `npm` might be installed to the "Program Files" directory, which needs admin privileges in order to