Update dev-dependencies

lib/check/check-files.js

@@ -29,8 +29,9 @@ function checkIfReferencedFilesExist(ctx, next) {
   function checkIfExists(filePath) {
     fs.access(filePath, fs.F_OK, onaccess)
 
-    function onaccess(err) {
-      var noEntry = err && (err.code === 'ENOENT' || err.code === 'ENOTDIR')
+    function onaccess(error) {
+      var noEntry =
+        error && (error.code === 'ENOENT' || error.code === 'ENOTDIR')
 
       landmarks[filePath] = {'': !noEntry}
 

lib/find/find-repo.js

@@ -36,12 +36,12 @@ function findRepo(ctx, next) {
     next()
   }
 
-  function onremote(err, stdout) {
+  function onremote(error, stdout) {
     var remote
 
-    if (err) {
+    if (error) {
       expected = Infinity
-      return next(err)
+      return next(error)
     }
 
     remote = stdout.match(/origin\t(.+?) \(fetch\)/)
@@ -58,12 +58,12 @@ function findRepo(ctx, next) {
     }
   }
 
-  function oncdup(err, stdout) {
+  function oncdup(error, stdout) {
     var out
 
-    if (err) {
+    if (error) {
       expected = Infinity
-      return next(err)
+      return next(error)
     }
 
     out = stdout.trim()

lib/index.js

@@ -23,9 +23,9 @@ function validateLinks(options, fileSet) {
   function transformer(tree, file, next) {
     find.run(xtend(settings, {tree: tree, file: file, fileSet: fileSet}), done)
 
-    function done(err) {
-      if (err) {
-        next(err)
+    function done(error) {
+      if (error) {
+        next(error)
       } else if (fileSet) {
         next()
       } else {
@@ -42,7 +42,7 @@ function cliCompleter(set, next) {
 
 function checkAll(files, next) {
   // Check all references and landmarks.
-  check.run({files: files}, function (err) {
-    next(err)
+  check.run({files: files}, function (error) {
+    next(error)
   })
 }

package.json

@@ -60,7 +60,7 @@
     "strip-ansi": "^6.0.0",
     "tape": "^5.0.0",
     "vfile-sort": "^2.0.0",
-    "xo": "^0.33.0"
+    "xo": "^0.37.0"
   },
   "scripts": {
     "format": "remark . -qfo --ignore-pattern test/ && prettier . -w --loglevel warn && xo --fix",
@@ -86,8 +86,9 @@
     "prettier": true,
     "esnext": false,
     "rules": {
+      "unicorn/no-array-callback-reference": "off",
+      "unicorn/prefer-number-properties": "off",
       "unicorn/prefer-optional-catch-binding": "off",
-      "unicorn/no-fn-reference-in-iterator": "off",
       "unicorn/prefer-includes": "off",
       "guard-for-in": "off"
     }