doc: child_process: default encoding is buffer, not string

[coderaiser]

Default encoding for execSync is Buffer, not string:

import {execSync} from 'node:child_process'

console.log(typeof execSync('ls'));

console.log(execSync('ls', {
    encoding: 'utf8'
}));

$ node 1.js
node 1.js 
<Buffer 44 61 72 77 69 6e 0a>
Darwin

[Renegade334]

Your PR description is correct, but that's already what the docs state. You have edited the wrong methods.

[coderaiser]

what method should I edit? utf8 not set by default

[Renegade334]

The docs do not need editing. The default encoding for exec is 'utf8', and the default encoding for execSync is 'buffer', as already stated.