Mixed line endings in HTML Output

[AliSajid]

Describe the bug
When using the default HTML output file, even if the input handlebars template has consistent line endings, the output file has a mix of CRLF and LF. I believe these mixed endings might be coming from the licenses as they are inserted. Is it possible to ensure that the output is consistent?

To Reproduce
Steps to reproduce the behavior:

1. Create a new crate and add dependencies
2. Run cargo about init
3. Run cargo about generate > about.html
4. Check the output of dos2unix

Expected behavior
Consistent line endings.

Device:

• OS: macos
• Version: cargo-about 0.6.0