Repository: typescript-eslint/tslint-to-eslint-config (ts)

Issue:
Convert space-within-parens to space-in-parens
### 🐛 Bug Report

-   `tslint-to-eslint-config` version: 0.5.0
-   ESLint version: 6.8.0
-   Node version: 11.10.0

#### Actual Behavior

TSLint rule `space-within-parens` will be converted to `@typescript-eslint/space-within-parens` (see #184 and #193), but there is no rule for that (anymore?) in the `@typescript-eslint` plugin. Instead ESLint's core rule `space-in-parens` should be used, as stated [here](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/ROADMAP.md#style) as well.

#### Expected Behavior

TSLint rule `space-within-parens` will be converted to `space-in-parens`.

Pull request description:
Convert space-within-parens to space-in-parens
## PR Checklist

-   [x] Addresses an existing issue: fixes #307 
-   [x] That issue was marked as [`status: accepting prs`](https://github.com/typescript-eslint/tslint-to-eslint-config/labels/status%3A%20accepting%20prs)

## Overview

TSLint rule `space-within-parens` will be converted to `space-in-parens` instead of `@typescript-eslint/space-within-parens`




Patch:
diff --git a/src/rules/converters/space-within-parens.ts b/src/rules/converters/space-within-parens.ts
index 307dfba..f24c898 100644
--- a/src/rules/converters/space-within-parens.ts
+++ b/src/rules/converters/space-within-parens.ts
@@ -16,7 +16,7 @@ export const convertSpaceWithinParens: RuleConverter = tslintRule => {
             {
                 ...(notices !== undefined && { notices }),
                 ruleArguments: [arg],
-                ruleName: "@typescript-eslint/space-within-parens",
+                ruleName: "space-in-parens",
             },
         ],
     };


Test patch:
diff --git a/src/rules/converters/tests/space-within-parens.test.ts b/src/rules/converters/tests/space-within-parens.test.ts
index 923af54..32aed65 100644
--- a/src/rules/converters/tests/space-within-parens.test.ts
+++ b/src/rules/converters/tests/space-within-parens.test.ts
@@ -10,7 +10,7 @@ describe(convertSpaceWithinParens, () => {
             rules: [
                 {
                     ruleArguments: ["never"],
-                    ruleName: "@typescript-eslint/space-within-parens",
+                    ruleName: "space-in-parens",
                 },
             ],
         });
@@ -26,7 +26,7 @@ describe(convertSpaceWithinParens, () => {
                 {
                     notices: ["The number of spaces will be ignored"],
                     ruleArguments: ["always"],
-                    ruleName: "@typescript-eslint/space-within-parens",
+                    ruleName: "space-in-parens",
                 },
             ],
         });