chore(package): update gulp-git to version 1.7.2 (#239)

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -73,7 +73,7 @@
     "find-root": "^1.0.0",
     "glob": "7.0.3",
     "gulp": "3.9.1",
-    "gulp-git": "1.7.1",
+    "gulp-git": "1.7.2",
     "home-or-tmp": "2.0.0",
     "inquirer": "1.0.2",
     "lodash": "4.11.1",