sinon in devDependencies

Author: whyboris

package.json

@@ -55,7 +55,6 @@
     "extend": "^3.0.1",
     "open": "^0.0.5",
     "request": "^2.87.0",
-    "sinon": "^7.2.3",
     "yargs": "^11.0.0"
   },
   "devDependencies": {
@@ -64,7 +63,8 @@
     "eslint-plugin-promise": "^3.8.0",
     "eslint-plugin-standard": "^3.1.0",
     "istanbul": "^0.4.5",
-    "mocha": "^5.2.0"
+    "mocha": "^5.2.0",
+    "sinon": "^7.2.3"
   },
   "license": "MIT",
   "files": [