UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36

Steps to reproduce the problem:
systrace --from-file=filename.ctrace outputs trace.html in all cases. 

Can we update it so that the output filename is 'filename.html' instead, so that it's easier to run --from-file on multiple files without accidentally overwriting the output or needing to update the output file manually?

What is the expected behavior?

What went wrong?
n/a

Did this work before? N/A 

Chrome version:   Channel: stable
OS Version: 
Flash Version: