How to reproduce:
1. Create a new URP/HDRP Template project
2. Create a new ShaderGraph file
3. Observe line endings in Notepad++ (Or some other editor which can show line endings)

Expected result: ShaderGraph file uses unified line endings
Actual result: ShaderGraph file uses a mix of 'CR LF' and 'LF' line endings

Reproducible with: 10.0.0-preview.27(2020.2.0a20), 10.1.0(2020.2.0b10), 11.0.0(2021.1.0a3)
Not reproducible with: 7.5.1(2019.4.14f1), 8.2.0(2020.2.0a20)
Could not test with: 2018.4(ShaderGraph was in early preview stage)

Notes:
1. HDRP/Lit and Blank shader graphs were used for the testing
2. ShaderGraph 10.0.0-preview.27 became available in 2020.2.0a20