fix: return type of error function

Author: jdx

package.json

@@ -18,16 +18,16 @@
     "@types/fs-extra": "^5.0.2",
     "@types/indent-string": "^3.0.0",
     "@types/mocha": "^5.2.0",
-    "@types/node": "^10.0.2",
+    "@types/node": "^10.0.4",
     "@types/strip-ansi": "^3.0.0",
     "@types/wrap-ansi": "^3.0.0",
     "chai": "^4.1.2",
     "chalk": "^2.4.1",
     "concurrently": "^3.5.1",
     "fancy-test": "^1.0.6",
     "mocha": "^5.1.1",
-    "ts-node": "^6.0.2",
-    "tslint": "^5.9.1",
+    "ts-node": "^6.0.3",
+    "tslint": "^5.10.0",
     "typescript": "^2.8.3"
   },
   "engines": {

src/index.ts

@@ -14,7 +14,7 @@ export function exit(code = 0) {
   throw new ExitError(code)
 }
 
-export function error(err: string | Error, options: {code?: string, exit?: number} = {}) {
+export function error(err: string | Error, options: {code?: string, exit?: number} = {}): never {
   throw new CLIError(err, options)
 }
 

yarn.lock

@@ -34,9 +34,9 @@
   version "9.4.5"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-9.4.5.tgz#d2a90c634208173d1b1a0a6ba9f1df3de62edcf5"
 
-"@types/node@^10.0.2":
-  version "10.0.2"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.0.2.tgz#180046ebbc37de8b64777765c2486ebecb59448e"
+"@types/node@^10.0.4":
+  version "10.0.4"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.0.4.tgz#130598ee56e9a1210a53f557d64935571f05390d"
 
 "@types/strip-ansi@^3.0.0":
   version "3.0.0"
@@ -540,9 +540,9 @@ tree-kill@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/tree-kill/-/tree-kill-1.2.0.tgz#5846786237b4239014f05db156b643212d4c6f36"
 
-ts-node@^6.0.2:
-  version "6.0.2"
-  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-6.0.2.tgz#e132d530e53173bc6a8c21ea65f64d8b47bc573e"
+ts-node@^6.0.3:
+  version "6.0.3"
+  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-6.0.3.tgz#28bf74bcad134fad17f7469dad04638ece03f0f4"
   dependencies:
     arrify "^1.0.0"
     chalk "^2.3.0"
@@ -586,9 +586,9 @@ tslint-xo@^0.7.0:
     tslint-eslint-rules "^5.1.0"
     tslint-microsoft-contrib "^5.0.2"
 
-tslint@^5.9.1:
-  version "5.9.1"
-  resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.9.1.tgz#1255f87a3ff57eb0b0e1f0e610a8b4748046c9ae"
+tslint@^5.10.0:
+  version "5.10.0"
+  resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.10.0.tgz#11e26bccb88afa02dd0d9956cae3d4540b5f54c3"
   dependencies:
     babel-code-frame "^6.22.0"
     builtin-modules "^1.1.1"