I had line-ending-selector.defaultLineEnding set to CRLF, however I was getting LF line endings when I clicked on "New File" on the Tree View. Sometimes, I would get a mixed result, where the lines after the body would be CRLF but the body would still be LF endings.
Using the most recent version of Atom and file-header (fresh install as of 6/15/18)
I had line-ending-selector.defaultLineEnding set to CRLF, however I was getting LF line endings when I clicked on "New File" on the Tree View. Sometimes, I would get a mixed result, where the lines after the body would be CRLF but the body would still be LF endings. Using the most recent version of Atom and file-header (fresh install as of 6/15/18)