Auto merge of #342 - ashrko619:ash-dev, r=aneeshusa
Auto merge of #342 - ashrko619:ash-dev, r=aneeshusa

Refactored python function to create command line arguments

This commit is for issue #338

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="35" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/saltfs/342)
<!-- Reviewable:end -->

setupminimal/saltfs,ALikhachev/saltfs,UK992/saltfs,rwaweber/saltfs,servo/saltfs,ALikhachev/saltfs,UK992/saltfs,rwaweber/saltfs,rwaweber/saltfs,servo/saltfs,ALikhachev/saltfs,setupminimal/saltfs,UK992/saltfs,setupminimal/saltfs