build: use generic names for linting tasks

"jslint" is the name of a tool that actually is not used, which can
cause confusion.

PR-URL: https://github.com/nodejs/node/pull/15272
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Alexey Orlenko <eaglexrlnk@gmail.com>

tools/lint-js.js

@@ -59,7 +59,7 @@ if (cluster.isMaster) {
       throw new Error('Bad parallel job count');
   }
 
-  // Check for custom JSLint report formatter
+  // Check for custom ESLint report formatter
   i = process.argv.indexOf('-f');
   if (i !== -1) {
     if (!process.argv[i + 1])
@@ -77,7 +77,7 @@ if (cluster.isMaster) {
     formatter = cli.getFormatter();
   }
 
-  // Check if outputting JSLint report to a file instead of stdout
+  // Check if outputting ESLint report to a file instead of stdout
   i = process.argv.indexOf('-o');
   if (i !== -1) {
     if (!process.argv[i + 1])