Minh Huy Nguyen - OSD600

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The final contribution for Hacktoberfest - release 0.2

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This is the final issue I made for a project called “Butterfly” by Paypal on Github, mostly written in Java programming language.

You can checkout the issue here and my PR here.

This project is a tool for automated application migrations, upgrade and source code change.

The problem is small but it’s important because one minor mistake can crash a whole program. To be more specific, the ealier regex did not match arguments with numbers or hyphen or underscore as mentioned here.

After I changed the regex to ^[a-zA-Z-_.$][a-zA-Z_$0-9]*$. The program does better with correct input as expected.