Apply suggestions from code review

Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: pd4d10

lib/_http_agent.js

@@ -58,7 +58,7 @@ const { once } = require('internal/util');
 const {
   validateNumber,
   validateOneOf,
-  validateString
+  validateString,
 } = require('internal/validators');
 
 const kOnKeylog = Symbol('onkeylog');

lib/_tls_wrap.js

@@ -471,8 +471,9 @@ function TLSSocket(socket, opts) {
       process.emitWarning('Enabling --trace-tls can expose sensitive data in ' +
                           'the resulting log.');
     }
-  } else
+  } else {
     validateBoolean(enableTrace, 'options.enableTrace');
+  }
 
   if (tlsOptions.ALPNProtocols)
     tls.convertALPNProtocols(tlsOptions.ALPNProtocols, tlsOptions);

lib/events.js

@@ -62,8 +62,8 @@ const {
 
 const {
   validateAbortSignal,
+  validateBoolean,
   validateFunction,
-  validateBoolean
 } = require('internal/validators');
 
 const kCapture = Symbol('kCapture');