Unzipped file name appears wrong

[judgej]

We ran the script with more-or-less the same settings as in the README.md example. The output filename was "db_dump.sql.gz".

Running from a browser, this saved as "db_dump.gz.gz".

Unzipping this gave us "db_dump.gz", although that was actually an SQL file.

Somewhere the "sql" was being replaced with "gz" in the content disposition attachment filename.

Worked like a charm otherwise - a life-saver when you don't have command-line access to a server :-)

[judgej]

I've not yet looked into why this is happening, but I'll make a pull request if I find the cause. Probably won't for a week or two though - project deadlines loom.

[clouddueling]

I'm going to close this for now but if you find it please make a pull request.