Update shelljs to version 0.7.5 🚀 (#372)

* chore(package): update shelljs to version 0.7.5

* fix(cli): fix path resolution

ShellJS upgraded to use exec().stdout instead of exec().output. This upgrades our usable to match this new api.

Author: greenkeeperio-bot

package.json

@@ -84,7 +84,7 @@
     "lodash": "4.17.2",
     "minimist": "1.2.0",
     "path-exists": "2.1.0",
-    "shelljs": "0.5.3",
+    "shelljs": "0.7.5",
     "strip-json-comments": "2.0.1"
   },
   "babel": {

src/commitizen/adapter.js

@@ -145,5 +145,5 @@ function resolveAdapterPath(inboundAdapterPath) {
 }
 
 function getGitRootPath() {
-  return sh.exec('git rev-parse --show-toplevel').output.trim();
+  return sh.exec('git rev-parse --show-toplevel').stdout.trim();
 }