Trim whitespace from file contents

[glesica]

I noticed that the file matcher I added last year doesn't trim whitespace, whereas the executors do trim whitespace from the content they capture from stdout and stderr. This causes annoyance if you edit the "gold" file with an editor like Vim that automatically appends a newline. I also changed it to convert \r\n to \n to match the executors.

Checklist

• Added unit / integration tests for windows, macOS and Linux?
• Added a changelog entry in CHANGELOG.md?
• Updated the documentation (README.md, docs)?
• Does your change work on Linux, Windows and macOS?

[glesica]

@dylanhitt @SimonBaeumer ping :-)

[dylanhitt]

Sorry I seemed to miss this juggling some things.

Nice - super informative with the \r\n

[dylanhitt]

@glesica would you mind force pushing your last commit. I just setup circleci to build forked PRs.

[glesica]

Not sure what's failing, exactly...

[dylanhitt]

So code coverage is failing to do forks not being allowed to run env variables which is fine.

The integration is failing because of the linecount not matching. You added a integration test so commander_unix.yaml the test it should execute tests needs to be iterated by 1 😄

[glesica]

Oh that's right! I'd forgotten about those! Done!