Repeatedly reformating the FA repo does add empty lines sometimes.

[ChessBerry]

That's bad. Figure out why and then fix it.
See e.g. ../FAForever_GitHub/units\UEA0203\UEA0203_script.lua

[ChessBerry]

The file ../FAForever_GitHub/units\XRL0403\XRL0403_script.lua
straight up fails to repeatedly reformat??

[ChessBerry]

maybe it's that reformatting after upvalue-ing, and not just repeated reformats, cause the problem? -> Testing.

[ChessBerry]

The file ../FAForever_GitHub/units\XRL0403\XRL0403_script.lua straight up fails to repeatedly reformat??

That was actually caused by an upvalue error for those files.
The empty lines in other files are unrelated though.