Update dev-dependencies

Author: wooorm

index.js

@@ -7,7 +7,7 @@ var color = true
 
 try {
   color = 'inspect' in require('util')
-} catch (error) {
+} catch (_) {
   /* istanbul ignore next - browser */
   color = false
 }

package.json

@@ -30,13 +30,13 @@
     "dtslint": "^1.0.2",
     "nyc": "^14.0.0",
     "prettier": "^1.0.0",
-    "remark-cli": "^6.0.0",
-    "remark-preset-wooorm": "^5.0.0",
-    "retext": "^6.0.0",
+    "remark-cli": "^7.0.0",
+    "remark-preset-wooorm": "^6.0.0",
+    "retext": "^7.0.0",
     "strip-ansi": "^5.0.0",
     "tape": "^4.0.0",
     "tinyify": "^2.0.0",
-    "xo": "^0.24.0"
+    "xo": "^0.25.0"
   },
   "scripts": {
     "format": "remark . -qfo && prettier --write \"**/*.js\" && xo --fix",
@@ -60,7 +60,8 @@
     "prettier": true,
     "esnext": false,
     "rules": {
-      "guard-for-in": "off"
+      "guard-for-in": "off",
+      "unicorn/prefer-includes": "off"
     },
     "ignore": [
       "unist-util-inspect.js"