Cosu wants to delete my files

[Commandcracker]

Describe the bug Cosu wants to delete my files, see To Reproduce

To Reproduce Steps to reproduce the behavior:

1. Create a file that ends with .lua

2. run cosu with the file name without .lua as a argument

3. See that cosu wants to overwrite the file and dos not display it's content

(Optinal)

6. Save
7. see that the content of the file is gone

Expected behavior Cosu should open the lua file or it should just create a file without .lua

Environment (please complete the following information):

• Version: v1.4.3
• Terminal: cc-tweaked
• Terminal's version: 1.19.2-1.101.2

[SammyForReal]

Ooh yeah this should not happen. I will fix this.