bump minimist to 1.2 to fix security issue

Author: isaacs

package.json

@@ -2,6 +2,9 @@
   "name": "mkdirp",
   "description": "Recursively mkdir, like `mkdir -p`",
   "version": "0.5.1",
+  "publishConfig": {
+    "tag": "legacy"
+  },
   "author": "James Halliday <[email protected]> (http://substack.net)",
   "main": "index.js",
   "keywords": [
@@ -16,7 +19,7 @@
     "test": "tap test/*.js"
   },
   "dependencies": {
-    "minimist": "0.0.8"
+    "minimist": "^1.2.5"
   },
   "devDependencies": {
     "mock-fs": "^3.7.0",