Update dependencies

* [`mdast-util-to-hast`](https://github.com/syntax-tree/mdast-util-to-hast/releases/tag/10.0.0)
  (**breaking**, potentially, if you have duplicate definitions)
* [`hast-util-sanitize`](https://github.com/syntax-tree/hast-util-sanitize/releases/tag/3.0.0),
  [`hast-util-hyperscript`](https://github.com/syntax-tree/hast-to-hyperscript/releases/tag/9.0.0)
  (**breaking**, potentially, if you or your dependents use typescript)

package.json

@@ -42,9 +42,9 @@
   ],
   "dependencies": {
     "@mapbox/hast-util-table-cell-style": "^0.1.3",
-    "hast-to-hyperscript": "^8.0.0",
-    "hast-util-sanitize": "^2.0.0",
-    "mdast-util-to-hast": "^8.0.0"
+    "hast-to-hyperscript": "^9.0.0",
+    "hast-util-sanitize": "^3.0.0",
+    "mdast-util-to-hast": "^10.0.0"
   },
   "devDependencies": {
     "is-hidden": "^1.0.0",

test/index.js

@@ -145,7 +145,7 @@ versions.forEach(function (reactVersion) {
       )
 
       if (global.process.env.UPDATE) {
-        fs.writeFileSync(path.join(root, name, 'output.html'), actual)
+        fs.writeFileSync(path.join(root, name, 'output.html'), actual + '\n')
       }
 
       t.equal(actual.trim(), expected.trim(), name)

test/react/v16/fixtures/code/output.html

@@ -7,8 +7,8 @@
 </code></pre>
 <pre><code></code></pre>
 <pre><code>  two spaces
-    one
-        two
-    one
-      mixed.
+	one
+		two
+	one
+	  mixed.
 </code></pre></div>