tools: eslint - use error and off

PR-URL: https://github.com/nodejs/node/pull/14061
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

tools/.eslintrc.yaml

@@ -3,11 +3,11 @@
 rules:
   # Stylistic Issues
   # http://eslint.org/docs/rules/#stylistic-issues
-  indent: [2, 2, {ArrayExpression: first,
-                  CallExpression: {arguments: first},
-                  FunctionDeclaration: {parameters: first},
-                  FunctionExpression: {parameters: first},
-                  MemberExpression: off,
-                  ObjectExpression: first,
-                  SwitchCase: 1}]
-  indent-legacy: 0
+  indent: [error, 2, {ArrayExpression: first,
+                      CallExpression: {arguments: first},
+                      FunctionDeclaration: {parameters: first},
+                      FunctionExpression: {parameters: first},
+                      MemberExpression: off,
+                      ObjectExpression: first,
+                      SwitchCase: 1}]
+  indent-legacy: off