chore(package): update xo to version 0.23.0

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
     "sinon": "^6.0.0",
     "strip-ansi": "^4.0.0",
     "tempy": "^0.2.1",
-    "xo": "^0.22.0"
+    "xo": "^0.23.0"
   },
   "engines": {
     "node": ">=8.3"

test/helpers/mockserver.js

@@ -30,7 +30,7 @@ async function start() {
       minTimeout: 1000,
       factor: 2,
     });
-  } catch (err) {
+  } catch (error) {
     throw new Error(`Couldn't start mock-server after 2 min`);
   }
 }
@@ -96,7 +96,7 @@ async function mock(
  * @param {Object} expectation The expectation created with `mock` function.
  * @return {Promise} A Promise that resolves if the expectation is met or reject otherwise.
  */
-async function verify(expectation) {
+function verify(expectation) {
   return client.verify(expectation);
 }
 

test/helpers/npm-registry.js

@@ -39,7 +39,7 @@ async function start() {
       minTimeout: 1000,
       factor: 2,
     });
-  } catch (err) {
+  } catch (error) {
     throw new Error(`Couldn't start npm-docker-couchdb after 2 min`);
   }