A newline is not a line
"Files should end with newlines." True -- files should end with newline characters. However, sometimes this is incorrectly interpreted to mean that files should end with an extra line.
A newline is not a line -- it is a character (Line Feed LF) and sometimes 2 characters (CRLF, Carriage Return + Line Feed).
Files should end with a newline character and not extra lines.
The character should be a Line Feed character (LF, 0x0A, \n).
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